WGU EXAM zm
Exam Solution
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D514 Analytical Methods of Healthcare Leaders 2026
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A+ GRADE ASSURED COMPLETE SOLUTIONS AND VERI
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FIED ANSWERS (7DAAC) zm zm
QUESTION 1 zm
ANOVA test zm
ANSWER
Analysis of variance (ANOVA) may be used in research studies where there are two or more groups
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to compare.
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QUESTION 2 zm
Chi-square tests zm
ANSWER
Chi-square tests determine if an association exists between two categorical variables.
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QUESTION 3 zm
Control group zm
ANSWER
In a healthcare environment, this group of patients does not receive the treatment that is being stud
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ied.
QUESTION 4 zm
Experimental group zm
ANSWER
This group of patients receives the treatment being studied with follow-
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up observation to determine the effect of the treatment.
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,QUESTION 5 zm
F-test
ANSWER
The F- zm
test is designed to test if two population variances are equal. The ratio of the two variances is comp
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ared. If they are equal, the ratio of the variances will be 1.
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QUESTION 6 zm
Frequency
ANSWER
Frequencies measure how often a particular value occurs to assess the importance of a value or che
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ck the variation of the values in a study.
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QUESTION 7 zm
Hypothesis
ANSWER
A proposed explanation for an observation that leads to a prediction. Through investigation and the
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use of statistical data, those doing the study will either confirm or reject the hypothesis. Testing the
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hypothesis will show if there is a link (or not) between two or more variables.
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QUESTION 8 zm
Integrity
ANSWER
Research always makes some assumptions, depending on the type of method used. Research assump
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tions must be identified to determine possible breaches of integrity.
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QUESTION 9 zm
Interval data zm
ANSWER
Interval data includes units of equal size, such as IQ results. There is no zero point. An example of i
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nterval scale is time: Time is measured in 24 hours in each day; the time between each hour is the
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same, 60 minutes.
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, QUESTION 10 zm
Mean
ANSWER
Mean is the arithmetic average. Divide the sum of all scores by the total number of scores.
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QUESTION 11 zm
Median
ANSWER
Median is the midpoint of the distribution of values, or the point above or below which 50 percent
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of the values fall.
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QUESTION 12 zm
Methods section components zm zm
ANSWER
When analyzing the quality of a study, a careful evaluation of the research methods can reveal critic
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al details about population and sample, covariables and hypothesis, data presentation, statistical anal
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ysis, and study limitations.
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QUESTION 13 zm
Misleading statistics zm
ANSWER
Interpreting and presenting the results of data analysis affords many opportunities for accidental or
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deliberate misrepresentations of data. Common examples include implying causation, extrapolating b
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eyond the reasonable, relying on a biased or incomplete sample, and using inappropriate graphical r
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epresentations.
QUESTION 14 zm
Mode
ANSWER
Mode is the value that occurs most frequently in the data.
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QUESTION 15 zm
Exam Solution
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D514 Analytical Methods of Healthcare Leaders 2026
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A+ GRADE ASSURED COMPLETE SOLUTIONS AND VERI
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FIED ANSWERS (7DAAC) zm zm
QUESTION 1 zm
ANOVA test zm
ANSWER
Analysis of variance (ANOVA) may be used in research studies where there are two or more groups
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to compare.
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QUESTION 2 zm
Chi-square tests zm
ANSWER
Chi-square tests determine if an association exists between two categorical variables.
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QUESTION 3 zm
Control group zm
ANSWER
In a healthcare environment, this group of patients does not receive the treatment that is being stud
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ied.
QUESTION 4 zm
Experimental group zm
ANSWER
This group of patients receives the treatment being studied with follow-
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up observation to determine the effect of the treatment.
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,QUESTION 5 zm
F-test
ANSWER
The F- zm
test is designed to test if two population variances are equal. The ratio of the two variances is comp
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ared. If they are equal, the ratio of the variances will be 1.
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QUESTION 6 zm
Frequency
ANSWER
Frequencies measure how often a particular value occurs to assess the importance of a value or che
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ck the variation of the values in a study.
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QUESTION 7 zm
Hypothesis
ANSWER
A proposed explanation for an observation that leads to a prediction. Through investigation and the
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use of statistical data, those doing the study will either confirm or reject the hypothesis. Testing the
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hypothesis will show if there is a link (or not) between two or more variables.
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QUESTION 8 zm
Integrity
ANSWER
Research always makes some assumptions, depending on the type of method used. Research assump
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tions must be identified to determine possible breaches of integrity.
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QUESTION 9 zm
Interval data zm
ANSWER
Interval data includes units of equal size, such as IQ results. There is no zero point. An example of i
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nterval scale is time: Time is measured in 24 hours in each day; the time between each hour is the
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same, 60 minutes.
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, QUESTION 10 zm
Mean
ANSWER
Mean is the arithmetic average. Divide the sum of all scores by the total number of scores.
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QUESTION 11 zm
Median
ANSWER
Median is the midpoint of the distribution of values, or the point above or below which 50 percent
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of the values fall.
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QUESTION 12 zm
Methods section components zm zm
ANSWER
When analyzing the quality of a study, a careful evaluation of the research methods can reveal critic
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al details about population and sample, covariables and hypothesis, data presentation, statistical anal
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ysis, and study limitations.
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QUESTION 13 zm
Misleading statistics zm
ANSWER
Interpreting and presenting the results of data analysis affords many opportunities for accidental or
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deliberate misrepresentations of data. Common examples include implying causation, extrapolating b
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eyond the reasonable, relying on a biased or incomplete sample, and using inappropriate graphical r
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epresentations.
QUESTION 14 zm
Mode
ANSWER
Mode is the value that occurs most frequently in the data.
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QUESTION 15 zm
