WGU C784 APPLIED HEALTHCARE STATISTICS ACTUAL VERIFIED EXAM | WESTERN GOVERNORS UNIVERSITY | 2026/2027
VERIFIED Q&A | HEALTHCARE AND NURSING STUDENTS | C784 STATISTICS
WGU C784
STATISTICS
2026/2027
WGU C784 Applied Healthcare Statistics Actual Verified Exam
Western Governors University (WGU) - 2026/2027 Academic Year
2026/2027 Academic Year | Verified Q&A for Healthcare and Nursing
Students | WGU C784 Statistics |
150Q VERIFIED NEWEST EXAM RATIONALES
C784 STATS 2026/2027 C784
INCLUDES:
• Descriptive Stats, Probability, Inferential Stats, Hypothesis Testing, Healthcare Data
• Correlation Regression, Quality Improvement, Evidence-Based Practice, C784
• 150 Verified Questions + Answers + Detailed Rationales | WGU C784 Statistics
• Professional Study Guide | Borders + Page Numbers | WGU 2026/2027 Edition
WGU C784 Applied Healthcare Statistics | WGU | Not affiliated
Confidential Study Guide - Educational Purposes Only | 2026/2027 Edition
,Descriptive Statistics Probability Inferential Hypothesis Testing T-Tests ANOVA WGU C784
Description: Descriptive statistics foundational WGU C784 Applied Healthcare Statistics healthcare nursing students, descriptive statistics summarize data, measures
central tendency mean average sum divided by n sensitive to outliers, median middle value 50th percentile robust outliers, mode most frequent, measures variability spread
range max minus min, variance average squared deviation from mean population sample n-1, standard deviation SD square root variance average distance from mean,
shapes distribution normal bell-shaped symmetric mean equals median mode, skewed positive right tail mean greater than median, negative left tail mean less than
median, graphs histogram frequency distribution continuous data bars touching, boxplot box and whisker quartiles median Q1 Q3 IQR interquartile range outlier detection,
probability and distributions probability rules 0 to 1 sum 1, normal distribution Gaussian bell curve mean 0 SD 1 standard normal, empirical rule 68-95-99.7 percent within 1
2 3 SD, z-scores standard scores z equals x minus mean over SD percentile, sampling distribution distribution of statistic Central Limit Theorem CLT sample size large
greater than 30 sampling distribution normal regardless population mean equals population mean SD equals standard error, inferential statistics and hypothesis testing
inferential generalizing sample to population, hypothesis testing framework null hypothesis H0 no effect status quo alternative Ha effect, steps state hypotheses set alpha
0.05 Type I error false positive, calculate test statistic p-value probability observing data if H0 true, decision reject H0 if p less than alpha, conclusion, Type II error false
negative beta power 1 minus beta, confidence intervals CI range plausible values population parameter 95 percent CI means 95 percent of intervals contain parameter,
interpretation, t-tests ANOVA chi-square comparison tests t-tests compare means, types independent t-test two independent groups, paired t-test dependent before after
same subjects, one-sample t-test compare sample mean to known value, assumptions normality interval continuous, ANOVA Analysis of Variance compare 3 or more
means F-test F equals between group variance over within, one-way two-way, post hoc Tukey, chi-square categorical data, goodness of fit one variable compare observed
expected, test independence two variables association contingency table, expected frequency greater than 5, WGU C784 Applied Healthcare Statistics.
Correlation Regression Healthcare Data Quality Improvement Evidence-Based Practice WGU C784
Description: Correlation regression relationship prediction WGU C784, correlation coefficient r measures strength direction linear relationship -1 to 1, r equals 0 no linear,
0.1-0.3 weak 0.3-0.5 moderate 0.5-1 strong, positive r increase both, negative inverse, scatter plot visualization, causation correlation not imply causation lurking variable,
linear regression prediction equation y equals mx plus b y dependent outcome x independent predictor b intercept m slope change y per unit x, least squares method
minimize residuals, R-squared coefficient determination proportion variance explained 0 to 1 higher better, residual analysis assumptions linearity independence normality
homoscedasticity, healthcare data and quality improvement healthcare metrics rates ratios proportions, incidence new cases per population time, prevalence total cases
population, mortality death rate, morbidity disease rate, quality improvement models PDSA Plan Do Study Act cycle, run charts time series median, control charts statistical
control limits common cause vs special cause variation, benchmarks comparison national, dashboards, evidence-based practice statistics EBP integration best evidence,
research levels evidence Level I systematic review meta-analysis RCT Level II RCT Level III quasi-experimental Level VII expert opinion, PICOT Population Intervention
Comparison Outcome Time question format, statistical significance p less than alpha vs clinical significance practical importance effect size magnitude difference Cohen d
small 0.2 medium 0.5 large 0.8, NNT Number Needed to Treat number patients need treat to prevent one outcome 1 over ARR Absolute Risk Reduction lower better,
relative risk RR odds ratio OR, confidence intervals, WGU C784 objective assessment format OA objective assessment online proctored multiple choice 60-70 questions 2
hours passing competency-based, competencies 6 topics Descriptive Statistics Probability Distributions Inferential Statistics Hypothesis Testing Comparison Tests
Correlation Regression Healthcare Data Quality Improvement Evidence-Based Practice, study tips practice calculations interpreting output, data visualization and
interpretation graphs types histogram continuous frequency, bar chart categorical comparison, pie chart proportion, scatter plot correlation two continuous, line graph trend
over time, boxplot distribution quartiles outliers, tables frequency distribution relative frequency cumulative, interpretation skewed distribution tail, outlier extreme value
effect mean, normal distribution symmetric, WGU C784 Applied Healthcare Statistics healthcare nursing.
WGU C784 Exam Domains Healthcare Nursing Students Statistics Study Guide
Description: WGU C784 Applied Healthcare Statistics course code Western Governors University WGU College Health Professions nursing healthcare programs BSN
MSN, objective assessment actual verified exam 2026/2027 Academic Year, competencies domains Descriptive Statistics 20 percent mean median mode range variance
SD histogram boxplot normal skewed, Probability Distributions 15 percent normal 68-95-99.7 z-scores sampling distribution CLT probability rules, Inferential Statistics
Hypothesis Testing 20 percent null alternative Type I II p-value alpha confidence intervals 95 percent, T-Tests ANOVA Chi-Square 15 percent independent paired
one-sample t-test ANOVA F-test post hoc chi-square goodness independence assumptions, Correlation Regression 15 percent correlation r strength direction scatter plot
linear regression y equals mx plus b R-squared causation vs correlation, Healthcare Data Quality Improvement 15 percent incidence prevalence mortality rates ratios
PDSA run charts control charts benchmarks dashboards, Evidence-Based Practice Statistics 10 percent EBP PICOT levels evidence statistical vs clinical significance
effect size NNT RR OR, Data Visualization 5 percent graphs tables interpretation, College WGU Western Governors University, study materials WGU C784 textbook
Applied Healthcare Statistics, 2026/2027 academic year actual verified exam 150Q verified questions answers rationales for healthcare and nursing students, healthcare
statistics core descriptive probability inferential, descriptive mean median mode range variance SD histogram boxplot normal probability normal distribution z-scores CLT
inferential null alternative p-value alpha CI t-tests independent paired ANOVA F chi-square correlation r -1 to 1 regression y equals mx plus b R-squared healthcare data
incidence prevalence PDSA run control charts EBP PICOT effect size NNT data visualization histogram bar pie scatter, healthcare nursing students exam preparation,
WGU C784 Applied Healthcare Statistics Actual Verified Exam, study guide borders page numbers improved cover page confidential educational purposes, healthcare
nursing students exam preparation, WGU C784 Applied Healthcare Statistics.
Page 2 - WGU C784 Statistics 150Q 2026/2027
,Question 1: Q1: Descriptive statistics - mean median mode and variability?
A. Descriptive mean median mode measures central tendency, variability range variance standard deviation, shapes normal skewed, graphs histogram
boxplot
B. Only mean descriptive statistics
C. Only variance descriptive statistics
D. No histogram descriptive statistics
CORRECT ANSWER: A. Descriptive mean median mode measures central tendency, variability range variance standard deviation, shapes
normal skewed, graphs histogram boxplot
RATIONALE:
Rationale: Descriptive mean median mode measures central tendency, variability range variance standard deviation, shapes normal skewed, graphs histogram boxplot.
Per Western Governors University WGU C784 Applied Healthcare Statistics for healthcare and nursing students 2026/2027.
Question 2: Q2: Probability and distributions - normal and sampling?
A. Only z-scores probability distributions
B. Only normal probability distributions
C. Probability distributions normal distribution 68-95-99.7 empirical rule, z-scores, sampling distribution CLT Central Limit Theorem, probability rules
D. No CLT probability distributions
CORRECT ANSWER: C. Probability distributions normal distribution 68-95-99.7 empirical rule, z-scores, sampling distribution CLT Central
Limit Theorem, probability rules
RATIONALE:
Rationale: Probability distributions normal distribution 68-95-99.7 empirical rule, z-scores, sampling distribution CLT Central Limit Theorem, probability rules. Per Western
Governors University WGU C784 Applied Healthcare Statistics for healthcare and nursing students 2026/2027.
Question 3: Q3: Inferential statistics and hypothesis testing?
A. Only p-value inferential statistics hypothesis testing
B. Only null hypothesis inferential statistics hypothesis testing
C. No confidence intervals inferential statistics hypothesis testing
D. Inferential hypothesis testing null alternative Type I II error p-value alpha 0.05, confidence intervals 95 percent, test statistics
CORRECT ANSWER: D. Inferential hypothesis testing null alternative Type I II error p-value alpha 0.05, confidence intervals 95 percent, test
statistics
RATIONALE:
Rationale: Inferential hypothesis testing null alternative Type I II error p-value alpha 0.05, confidence intervals 95 percent, test statistics. Per Western Governors
University WGU C784 Applied Healthcare Statistics for healthcare and nursing students 2026/2027.
Question 4: Q4: t-tests ANOVA chi-square - comparison tests?
A. Only t-tests comparison tests
B. Comparison tests t-tests independent paired one-sample, ANOVA Analysis Variance F-test, chi-square goodness fit independence, assumptions
normality
C. Only ANOVA comparison tests
D. No chi-square comparison tests
CORRECT ANSWER: B. Comparison tests t-tests independent paired one-sample, ANOVA Analysis Variance F-test, chi-square goodness fit
independence, assumptions normality
RATIONALE:
Rationale: Comparison tests t-tests independent paired one-sample, ANOVA Analysis Variance F-test, chi-square goodness fit independence, assumptions normality. Per
Western Governors University WGU C784 Applied Healthcare Statistics for healthcare and nursing students 2026/2027.
Question 5: Q5: Correlation regression - relationship and prediction?
A. Correlation regression correlation coefficient r -1 to 1 strength direction, linear regression y equals mx plus b prediction, R-squared, causation
B. Only r correlation regression
C. Only regression line correlation regression
D. No R-squared correlation regression
CORRECT ANSWER: A. Correlation regression correlation coefficient r -1 to 1 strength direction, linear regression y equals mx plus b
prediction, R-squared, causation
RATIONALE:
Rationale: Correlation regression correlation coefficient r -1 to 1 strength direction, linear regression y equals mx plus b prediction, R-squared, causation. Per Western
Governors University WGU C784 Applied Healthcare Statistics for healthcare and nursing students 2026/2027.
Question 6: Q6: Healthcare data and quality improvement - metrics?
A. Only PDSA healthcare data quality improvement
B. Only incidence healthcare data quality improvement
C. Healthcare data quality improvement metrics rates ratios proportions incidence prevalence mortality, quality improvement PDSA run charts control
charts
D. No control charts healthcare data quality improvement
CORRECT ANSWER: C. Healthcare data quality improvement metrics rates ratios proportions incidence prevalence mortality, quality
improvement PDSA run charts control charts
RATIONALE:
Rationale: Healthcare data quality improvement metrics rates ratios proportions incidence prevalence mortality, quality improvement PDSA run charts control charts. Per
Western Governors University WGU C784 Applied Healthcare Statistics for healthcare and nursing students 2026/2027.
Question 7: Q7: Evidence-based practice statistics - EBP and research?
A. Only effect size evidence-based practice statistics
Page 3 - WGU C784 Statistics 150Q 2026/2027
, B. Only PICOT evidence-based practice statistics
C. No NNT evidence-based practice statistics
D. EBP statistics EBP research levels evidence, PICOT, statistical significance vs clinical significance, effect size, NNT Number Needed Treat
CORRECT ANSWER: D. EBP statistics EBP research levels evidence, PICOT, statistical significance vs clinical significance, effect size, NNT
Number Needed Treat
RATIONALE:
Rationale: EBP statistics EBP research levels evidence, PICOT, statistical significance vs clinical significance, effect size, NNT Number Needed Treat. Per Western
Governors University WGU C784 Applied Healthcare Statistics for healthcare and nursing students 2026/2027.
Question 8: Q8: WGU C784 objective assessment - OA format and competencies?
A. Only OA WGU C784 objective assessment
B. WGU C784 OA objective assessment multiple choice proctored, competencies descriptive probability inferential t-tests correlation healthcare data
EBP
C. Only competencies WGU C784 objective assessment
D. No proctored WGU C784 objective assessment
CORRECT ANSWER: B. WGU C784 OA objective assessment multiple choice proctored, competencies descriptive probability inferential
t-tests correlation healthcare data EBP
RATIONALE:
Rationale: WGU C784 OA objective assessment multiple choice proctored, competencies descriptive probability inferential t-tests correlation healthcare data EBP. Per
Western Governors University WGU C784 Applied Healthcare Statistics for healthcare and nursing students 2026/2027.
Question 9: Q9: Data visualization and interpretation - graphs and tables?
A. Data visualization graphs histogram bar chart pie chart scatter plot line graph boxplot, interpretation skewed normal outlier, tables frequency
B. Only histogram data visualization interpretation
C. Only scatter plot data visualization interpretation
D. No outlier data visualization interpretation
CORRECT ANSWER: A. Data visualization graphs histogram bar chart pie chart scatter plot line graph boxplot, interpretation skewed normal
outlier, tables frequency
RATIONALE:
Rationale: Data visualization graphs histogram bar chart pie chart scatter plot line graph boxplot, interpretation skewed normal outlier, tables frequency. Per Western
Governors University WGU C784 Applied Healthcare Statistics for healthcare and nursing students 2026/2027.
Question 10: Q10: WGU C784 domains - healthcare nursing students?
A. Only inferential WGU C784 domains
B. Only descriptive WGU C784 domains
C. WGU C784 domains descriptive 20 percent probability 15 percent inferential hypothesis 20 percent t-tests ANOVA chi-square 15 percent correlation
regression 15 percent healthcare data quality EBP 15 percent
D. No correlation WGU C784 domains
CORRECT ANSWER: C. WGU C784 domains descriptive 20 percent probability 15 percent inferential hypothesis 20 percent t-tests ANOVA
chi-square 15 percent correlation regression 15 percent healthcare data quality EBP 15 percent
RATIONALE:
Rationale: WGU C784 domains descriptive 20 percent probability 15 percent inferential hypothesis 20 percent t-tests ANOVA chi-square 15 percent correlation regression
15 percent healthcare data quality EBP 15 percent. Per Western Governors University WGU C784 Applied Healthcare Statistics for healthcare and nursing students
2026/2027.
Page 4 - WGU C784 Statistics 150Q 2026/2027
VERIFIED Q&A | HEALTHCARE AND NURSING STUDENTS | C784 STATISTICS
WGU C784
STATISTICS
2026/2027
WGU C784 Applied Healthcare Statistics Actual Verified Exam
Western Governors University (WGU) - 2026/2027 Academic Year
2026/2027 Academic Year | Verified Q&A for Healthcare and Nursing
Students | WGU C784 Statistics |
150Q VERIFIED NEWEST EXAM RATIONALES
C784 STATS 2026/2027 C784
INCLUDES:
• Descriptive Stats, Probability, Inferential Stats, Hypothesis Testing, Healthcare Data
• Correlation Regression, Quality Improvement, Evidence-Based Practice, C784
• 150 Verified Questions + Answers + Detailed Rationales | WGU C784 Statistics
• Professional Study Guide | Borders + Page Numbers | WGU 2026/2027 Edition
WGU C784 Applied Healthcare Statistics | WGU | Not affiliated
Confidential Study Guide - Educational Purposes Only | 2026/2027 Edition
,Descriptive Statistics Probability Inferential Hypothesis Testing T-Tests ANOVA WGU C784
Description: Descriptive statistics foundational WGU C784 Applied Healthcare Statistics healthcare nursing students, descriptive statistics summarize data, measures
central tendency mean average sum divided by n sensitive to outliers, median middle value 50th percentile robust outliers, mode most frequent, measures variability spread
range max minus min, variance average squared deviation from mean population sample n-1, standard deviation SD square root variance average distance from mean,
shapes distribution normal bell-shaped symmetric mean equals median mode, skewed positive right tail mean greater than median, negative left tail mean less than
median, graphs histogram frequency distribution continuous data bars touching, boxplot box and whisker quartiles median Q1 Q3 IQR interquartile range outlier detection,
probability and distributions probability rules 0 to 1 sum 1, normal distribution Gaussian bell curve mean 0 SD 1 standard normal, empirical rule 68-95-99.7 percent within 1
2 3 SD, z-scores standard scores z equals x minus mean over SD percentile, sampling distribution distribution of statistic Central Limit Theorem CLT sample size large
greater than 30 sampling distribution normal regardless population mean equals population mean SD equals standard error, inferential statistics and hypothesis testing
inferential generalizing sample to population, hypothesis testing framework null hypothesis H0 no effect status quo alternative Ha effect, steps state hypotheses set alpha
0.05 Type I error false positive, calculate test statistic p-value probability observing data if H0 true, decision reject H0 if p less than alpha, conclusion, Type II error false
negative beta power 1 minus beta, confidence intervals CI range plausible values population parameter 95 percent CI means 95 percent of intervals contain parameter,
interpretation, t-tests ANOVA chi-square comparison tests t-tests compare means, types independent t-test two independent groups, paired t-test dependent before after
same subjects, one-sample t-test compare sample mean to known value, assumptions normality interval continuous, ANOVA Analysis of Variance compare 3 or more
means F-test F equals between group variance over within, one-way two-way, post hoc Tukey, chi-square categorical data, goodness of fit one variable compare observed
expected, test independence two variables association contingency table, expected frequency greater than 5, WGU C784 Applied Healthcare Statistics.
Correlation Regression Healthcare Data Quality Improvement Evidence-Based Practice WGU C784
Description: Correlation regression relationship prediction WGU C784, correlation coefficient r measures strength direction linear relationship -1 to 1, r equals 0 no linear,
0.1-0.3 weak 0.3-0.5 moderate 0.5-1 strong, positive r increase both, negative inverse, scatter plot visualization, causation correlation not imply causation lurking variable,
linear regression prediction equation y equals mx plus b y dependent outcome x independent predictor b intercept m slope change y per unit x, least squares method
minimize residuals, R-squared coefficient determination proportion variance explained 0 to 1 higher better, residual analysis assumptions linearity independence normality
homoscedasticity, healthcare data and quality improvement healthcare metrics rates ratios proportions, incidence new cases per population time, prevalence total cases
population, mortality death rate, morbidity disease rate, quality improvement models PDSA Plan Do Study Act cycle, run charts time series median, control charts statistical
control limits common cause vs special cause variation, benchmarks comparison national, dashboards, evidence-based practice statistics EBP integration best evidence,
research levels evidence Level I systematic review meta-analysis RCT Level II RCT Level III quasi-experimental Level VII expert opinion, PICOT Population Intervention
Comparison Outcome Time question format, statistical significance p less than alpha vs clinical significance practical importance effect size magnitude difference Cohen d
small 0.2 medium 0.5 large 0.8, NNT Number Needed to Treat number patients need treat to prevent one outcome 1 over ARR Absolute Risk Reduction lower better,
relative risk RR odds ratio OR, confidence intervals, WGU C784 objective assessment format OA objective assessment online proctored multiple choice 60-70 questions 2
hours passing competency-based, competencies 6 topics Descriptive Statistics Probability Distributions Inferential Statistics Hypothesis Testing Comparison Tests
Correlation Regression Healthcare Data Quality Improvement Evidence-Based Practice, study tips practice calculations interpreting output, data visualization and
interpretation graphs types histogram continuous frequency, bar chart categorical comparison, pie chart proportion, scatter plot correlation two continuous, line graph trend
over time, boxplot distribution quartiles outliers, tables frequency distribution relative frequency cumulative, interpretation skewed distribution tail, outlier extreme value
effect mean, normal distribution symmetric, WGU C784 Applied Healthcare Statistics healthcare nursing.
WGU C784 Exam Domains Healthcare Nursing Students Statistics Study Guide
Description: WGU C784 Applied Healthcare Statistics course code Western Governors University WGU College Health Professions nursing healthcare programs BSN
MSN, objective assessment actual verified exam 2026/2027 Academic Year, competencies domains Descriptive Statistics 20 percent mean median mode range variance
SD histogram boxplot normal skewed, Probability Distributions 15 percent normal 68-95-99.7 z-scores sampling distribution CLT probability rules, Inferential Statistics
Hypothesis Testing 20 percent null alternative Type I II p-value alpha confidence intervals 95 percent, T-Tests ANOVA Chi-Square 15 percent independent paired
one-sample t-test ANOVA F-test post hoc chi-square goodness independence assumptions, Correlation Regression 15 percent correlation r strength direction scatter plot
linear regression y equals mx plus b R-squared causation vs correlation, Healthcare Data Quality Improvement 15 percent incidence prevalence mortality rates ratios
PDSA run charts control charts benchmarks dashboards, Evidence-Based Practice Statistics 10 percent EBP PICOT levels evidence statistical vs clinical significance
effect size NNT RR OR, Data Visualization 5 percent graphs tables interpretation, College WGU Western Governors University, study materials WGU C784 textbook
Applied Healthcare Statistics, 2026/2027 academic year actual verified exam 150Q verified questions answers rationales for healthcare and nursing students, healthcare
statistics core descriptive probability inferential, descriptive mean median mode range variance SD histogram boxplot normal probability normal distribution z-scores CLT
inferential null alternative p-value alpha CI t-tests independent paired ANOVA F chi-square correlation r -1 to 1 regression y equals mx plus b R-squared healthcare data
incidence prevalence PDSA run control charts EBP PICOT effect size NNT data visualization histogram bar pie scatter, healthcare nursing students exam preparation,
WGU C784 Applied Healthcare Statistics Actual Verified Exam, study guide borders page numbers improved cover page confidential educational purposes, healthcare
nursing students exam preparation, WGU C784 Applied Healthcare Statistics.
Page 2 - WGU C784 Statistics 150Q 2026/2027
,Question 1: Q1: Descriptive statistics - mean median mode and variability?
A. Descriptive mean median mode measures central tendency, variability range variance standard deviation, shapes normal skewed, graphs histogram
boxplot
B. Only mean descriptive statistics
C. Only variance descriptive statistics
D. No histogram descriptive statistics
CORRECT ANSWER: A. Descriptive mean median mode measures central tendency, variability range variance standard deviation, shapes
normal skewed, graphs histogram boxplot
RATIONALE:
Rationale: Descriptive mean median mode measures central tendency, variability range variance standard deviation, shapes normal skewed, graphs histogram boxplot.
Per Western Governors University WGU C784 Applied Healthcare Statistics for healthcare and nursing students 2026/2027.
Question 2: Q2: Probability and distributions - normal and sampling?
A. Only z-scores probability distributions
B. Only normal probability distributions
C. Probability distributions normal distribution 68-95-99.7 empirical rule, z-scores, sampling distribution CLT Central Limit Theorem, probability rules
D. No CLT probability distributions
CORRECT ANSWER: C. Probability distributions normal distribution 68-95-99.7 empirical rule, z-scores, sampling distribution CLT Central
Limit Theorem, probability rules
RATIONALE:
Rationale: Probability distributions normal distribution 68-95-99.7 empirical rule, z-scores, sampling distribution CLT Central Limit Theorem, probability rules. Per Western
Governors University WGU C784 Applied Healthcare Statistics for healthcare and nursing students 2026/2027.
Question 3: Q3: Inferential statistics and hypothesis testing?
A. Only p-value inferential statistics hypothesis testing
B. Only null hypothesis inferential statistics hypothesis testing
C. No confidence intervals inferential statistics hypothesis testing
D. Inferential hypothesis testing null alternative Type I II error p-value alpha 0.05, confidence intervals 95 percent, test statistics
CORRECT ANSWER: D. Inferential hypothesis testing null alternative Type I II error p-value alpha 0.05, confidence intervals 95 percent, test
statistics
RATIONALE:
Rationale: Inferential hypothesis testing null alternative Type I II error p-value alpha 0.05, confidence intervals 95 percent, test statistics. Per Western Governors
University WGU C784 Applied Healthcare Statistics for healthcare and nursing students 2026/2027.
Question 4: Q4: t-tests ANOVA chi-square - comparison tests?
A. Only t-tests comparison tests
B. Comparison tests t-tests independent paired one-sample, ANOVA Analysis Variance F-test, chi-square goodness fit independence, assumptions
normality
C. Only ANOVA comparison tests
D. No chi-square comparison tests
CORRECT ANSWER: B. Comparison tests t-tests independent paired one-sample, ANOVA Analysis Variance F-test, chi-square goodness fit
independence, assumptions normality
RATIONALE:
Rationale: Comparison tests t-tests independent paired one-sample, ANOVA Analysis Variance F-test, chi-square goodness fit independence, assumptions normality. Per
Western Governors University WGU C784 Applied Healthcare Statistics for healthcare and nursing students 2026/2027.
Question 5: Q5: Correlation regression - relationship and prediction?
A. Correlation regression correlation coefficient r -1 to 1 strength direction, linear regression y equals mx plus b prediction, R-squared, causation
B. Only r correlation regression
C. Only regression line correlation regression
D. No R-squared correlation regression
CORRECT ANSWER: A. Correlation regression correlation coefficient r -1 to 1 strength direction, linear regression y equals mx plus b
prediction, R-squared, causation
RATIONALE:
Rationale: Correlation regression correlation coefficient r -1 to 1 strength direction, linear regression y equals mx plus b prediction, R-squared, causation. Per Western
Governors University WGU C784 Applied Healthcare Statistics for healthcare and nursing students 2026/2027.
Question 6: Q6: Healthcare data and quality improvement - metrics?
A. Only PDSA healthcare data quality improvement
B. Only incidence healthcare data quality improvement
C. Healthcare data quality improvement metrics rates ratios proportions incidence prevalence mortality, quality improvement PDSA run charts control
charts
D. No control charts healthcare data quality improvement
CORRECT ANSWER: C. Healthcare data quality improvement metrics rates ratios proportions incidence prevalence mortality, quality
improvement PDSA run charts control charts
RATIONALE:
Rationale: Healthcare data quality improvement metrics rates ratios proportions incidence prevalence mortality, quality improvement PDSA run charts control charts. Per
Western Governors University WGU C784 Applied Healthcare Statistics for healthcare and nursing students 2026/2027.
Question 7: Q7: Evidence-based practice statistics - EBP and research?
A. Only effect size evidence-based practice statistics
Page 3 - WGU C784 Statistics 150Q 2026/2027
, B. Only PICOT evidence-based practice statistics
C. No NNT evidence-based practice statistics
D. EBP statistics EBP research levels evidence, PICOT, statistical significance vs clinical significance, effect size, NNT Number Needed Treat
CORRECT ANSWER: D. EBP statistics EBP research levels evidence, PICOT, statistical significance vs clinical significance, effect size, NNT
Number Needed Treat
RATIONALE:
Rationale: EBP statistics EBP research levels evidence, PICOT, statistical significance vs clinical significance, effect size, NNT Number Needed Treat. Per Western
Governors University WGU C784 Applied Healthcare Statistics for healthcare and nursing students 2026/2027.
Question 8: Q8: WGU C784 objective assessment - OA format and competencies?
A. Only OA WGU C784 objective assessment
B. WGU C784 OA objective assessment multiple choice proctored, competencies descriptive probability inferential t-tests correlation healthcare data
EBP
C. Only competencies WGU C784 objective assessment
D. No proctored WGU C784 objective assessment
CORRECT ANSWER: B. WGU C784 OA objective assessment multiple choice proctored, competencies descriptive probability inferential
t-tests correlation healthcare data EBP
RATIONALE:
Rationale: WGU C784 OA objective assessment multiple choice proctored, competencies descriptive probability inferential t-tests correlation healthcare data EBP. Per
Western Governors University WGU C784 Applied Healthcare Statistics for healthcare and nursing students 2026/2027.
Question 9: Q9: Data visualization and interpretation - graphs and tables?
A. Data visualization graphs histogram bar chart pie chart scatter plot line graph boxplot, interpretation skewed normal outlier, tables frequency
B. Only histogram data visualization interpretation
C. Only scatter plot data visualization interpretation
D. No outlier data visualization interpretation
CORRECT ANSWER: A. Data visualization graphs histogram bar chart pie chart scatter plot line graph boxplot, interpretation skewed normal
outlier, tables frequency
RATIONALE:
Rationale: Data visualization graphs histogram bar chart pie chart scatter plot line graph boxplot, interpretation skewed normal outlier, tables frequency. Per Western
Governors University WGU C784 Applied Healthcare Statistics for healthcare and nursing students 2026/2027.
Question 10: Q10: WGU C784 domains - healthcare nursing students?
A. Only inferential WGU C784 domains
B. Only descriptive WGU C784 domains
C. WGU C784 domains descriptive 20 percent probability 15 percent inferential hypothesis 20 percent t-tests ANOVA chi-square 15 percent correlation
regression 15 percent healthcare data quality EBP 15 percent
D. No correlation WGU C784 domains
CORRECT ANSWER: C. WGU C784 domains descriptive 20 percent probability 15 percent inferential hypothesis 20 percent t-tests ANOVA
chi-square 15 percent correlation regression 15 percent healthcare data quality EBP 15 percent
RATIONALE:
Rationale: WGU C784 domains descriptive 20 percent probability 15 percent inferential hypothesis 20 percent t-tests ANOVA chi-square 15 percent correlation regression
15 percent healthcare data quality EBP 15 percent. Per Western Governors University WGU C784 Applied Healthcare Statistics for healthcare and nursing students
2026/2027.
Page 4 - WGU C784 Statistics 150Q 2026/2027
