WGU D514 Analytical Methods of Healthcare
{Healthcare Data, Statistics & Analytics}
Comprehensive Resource To Help You Ace 2026-2027
Includes Frequently Tested Questions With ELABORATED
100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!!
Current Update!!
1. Which of the following data types is classified as ordinal?
A. Patient age
B. Patient severity level
C. Medical record number
D. Length of stay
Correct Answer: B. Patient severity level
2. Which data type does NOT have a natural order?
A. Ordinal
B. Interval
C. Ratio
D. Nominal
Correct Answer: D. Nominal
3. Data collected in response to the prompt “Please list any suggestions for improvement
in your experience as a patient in our facility” would be classified as which type of
data?
A. Quantitative
B. Interval
C. Qualitative
D. Ratio
Correct Answer: C. Qualitative
4. What is the primary use of healthcare claims data?
A. Clinical decision support
, B. Quality improvement reporting
C. Calculation of reimbursement for services
D. Population health management
Correct Answer: C. Calculation of reimbursement for services
5. The mean is an appropriate measure of central tendency for which variable?
A. Patient satisfaction rating
B. Gender
C. Length of stay
D. Diagnosis category
Correct Answer: C. Length of stay
6. A t-test statistic of 3.92 is calculated with α = 0.01. Should the null hypothesis be
rejected?
A. No, because α is too small
B. No, because sample size is too large
C. Yes, because the test statistic exceeds the critical value
D. Cannot be determined
Correct Answer: C. Yes, because the test statistic exceeds the critical value
7. If length of stay and charges are positively correlated, which statement is true?
A. Charges decrease as length of stay increases
B. Charges remain constant
C. Length of stay decreases as charges increase
D. Charges increase as length of stay increases
Correct Answer: D. Charges increase as length of stay increases
8. Which statistic measures association between an ordinal and an interval variable?
A. Pearson correlation
B. Spearman’s rho
C. Chi-square
D. ANOVA
Correct Answer: B. Spearman’s rho
9. In the regression equation Y = BX + A, what does the slope (B) represent?
A. The value of Y when X equals zero
B. The correlation coefficient
, C. The change in Y for each one-unit change in X
D. The standard error
Correct Answer: C. The change in Y for each one-unit change in X
10. If the correlation coefficient is 0.76, what is the coefficient of determination (R²)?
A. 0.76
B. 0.58
C. 0.42
D. 0.18
Correct Answer: B. 0.58
11. The least squares method estimates a regression line by:
A. Maximizing correlation
B. Minimizing absolute deviations
C. Minimizing squared distances from points to the line
D. Minimizing residuals only above the line
Correct Answer: C. Minimizing squared distances from points to the line
12. A random selection of claims within three DRGs represents what type of sample?
A. Simple random sample
B. Convenience sample
C. Cluster sample
D. Stratified sample
Correct Answer: D. Stratified sample
13. Which scenario represents a non-probability sample?
A. Random selection of inpatient discharges
B. Stratified DRG sampling
C. First 10 students entering a classroom
D. Random digit dialing
Correct Answer: C. First 10 students entering a classroom
14. A list of all subjects eligible for sampling is called a:
A. Population
B. Census
C. Sampling frame
D. Cohort
Correct Answer: C. Sampling frame
, 15. What effect does increasing sample size have on precision?
A. Reduces precision
B. Has no impact
C. Increases variability
D. Increases precision
Correct Answer: D. Increases precision
16. Which sequence correctly represents the data flow for a hospital inpatient admission?
A. Charges recorded → Registration → Codes assigned → Services performed
B. Registration → Services performed → Charges recorded → Diagnostic and procedure
codes assigned
C. Services performed → Registration → Coding → Charges recorded
D. Registration → Charges recorded → Services performed → Coding
Correct Answer: B. Registration → Services performed → Charges recorded →
Diagnostic and procedure codes assigned
17. MS-DRG stands for:
A. Medical Severity Diagnosis Reporting Groups
B. Medicare Severity Diagnosis Related Groups
C. Medical Services Diagnosis Related Groups
D. Medicare Service Diagnostic Groups
Correct Answer: B. Medicare Severity Diagnosis Related Groups
18. The MedPAR file primarily contains which type of data?
A. Outpatient encounter data
B. Physician billing data
C. Inpatient claims data
D. Pharmacy claims data
Correct Answer: C. Inpatient claims data
19. Which claim form is used for physician billing?
A. UB-04
B. CMS-1500
C. HCFA-92
D. MedPAR
Correct Answer: B. CMS-1500
{Healthcare Data, Statistics & Analytics}
Comprehensive Resource To Help You Ace 2026-2027
Includes Frequently Tested Questions With ELABORATED
100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!!
Current Update!!
1. Which of the following data types is classified as ordinal?
A. Patient age
B. Patient severity level
C. Medical record number
D. Length of stay
Correct Answer: B. Patient severity level
2. Which data type does NOT have a natural order?
A. Ordinal
B. Interval
C. Ratio
D. Nominal
Correct Answer: D. Nominal
3. Data collected in response to the prompt “Please list any suggestions for improvement
in your experience as a patient in our facility” would be classified as which type of
data?
A. Quantitative
B. Interval
C. Qualitative
D. Ratio
Correct Answer: C. Qualitative
4. What is the primary use of healthcare claims data?
A. Clinical decision support
, B. Quality improvement reporting
C. Calculation of reimbursement for services
D. Population health management
Correct Answer: C. Calculation of reimbursement for services
5. The mean is an appropriate measure of central tendency for which variable?
A. Patient satisfaction rating
B. Gender
C. Length of stay
D. Diagnosis category
Correct Answer: C. Length of stay
6. A t-test statistic of 3.92 is calculated with α = 0.01. Should the null hypothesis be
rejected?
A. No, because α is too small
B. No, because sample size is too large
C. Yes, because the test statistic exceeds the critical value
D. Cannot be determined
Correct Answer: C. Yes, because the test statistic exceeds the critical value
7. If length of stay and charges are positively correlated, which statement is true?
A. Charges decrease as length of stay increases
B. Charges remain constant
C. Length of stay decreases as charges increase
D. Charges increase as length of stay increases
Correct Answer: D. Charges increase as length of stay increases
8. Which statistic measures association between an ordinal and an interval variable?
A. Pearson correlation
B. Spearman’s rho
C. Chi-square
D. ANOVA
Correct Answer: B. Spearman’s rho
9. In the regression equation Y = BX + A, what does the slope (B) represent?
A. The value of Y when X equals zero
B. The correlation coefficient
, C. The change in Y for each one-unit change in X
D. The standard error
Correct Answer: C. The change in Y for each one-unit change in X
10. If the correlation coefficient is 0.76, what is the coefficient of determination (R²)?
A. 0.76
B. 0.58
C. 0.42
D. 0.18
Correct Answer: B. 0.58
11. The least squares method estimates a regression line by:
A. Maximizing correlation
B. Minimizing absolute deviations
C. Minimizing squared distances from points to the line
D. Minimizing residuals only above the line
Correct Answer: C. Minimizing squared distances from points to the line
12. A random selection of claims within three DRGs represents what type of sample?
A. Simple random sample
B. Convenience sample
C. Cluster sample
D. Stratified sample
Correct Answer: D. Stratified sample
13. Which scenario represents a non-probability sample?
A. Random selection of inpatient discharges
B. Stratified DRG sampling
C. First 10 students entering a classroom
D. Random digit dialing
Correct Answer: C. First 10 students entering a classroom
14. A list of all subjects eligible for sampling is called a:
A. Population
B. Census
C. Sampling frame
D. Cohort
Correct Answer: C. Sampling frame
, 15. What effect does increasing sample size have on precision?
A. Reduces precision
B. Has no impact
C. Increases variability
D. Increases precision
Correct Answer: D. Increases precision
16. Which sequence correctly represents the data flow for a hospital inpatient admission?
A. Charges recorded → Registration → Codes assigned → Services performed
B. Registration → Services performed → Charges recorded → Diagnostic and procedure
codes assigned
C. Services performed → Registration → Coding → Charges recorded
D. Registration → Charges recorded → Services performed → Coding
Correct Answer: B. Registration → Services performed → Charges recorded →
Diagnostic and procedure codes assigned
17. MS-DRG stands for:
A. Medical Severity Diagnosis Reporting Groups
B. Medicare Severity Diagnosis Related Groups
C. Medical Services Diagnosis Related Groups
D. Medicare Service Diagnostic Groups
Correct Answer: B. Medicare Severity Diagnosis Related Groups
18. The MedPAR file primarily contains which type of data?
A. Outpatient encounter data
B. Physician billing data
C. Inpatient claims data
D. Pharmacy claims data
Correct Answer: C. Inpatient claims data
19. Which claim form is used for physician billing?
A. UB-04
B. CMS-1500
C. HCFA-92
D. MedPAR
Correct Answer: B. CMS-1500
