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Wgu D514 Objective Assessment Final/Wgu
D514 Analytical Methods Of Healthcare
Leaders Oa Exam Newest 2026 Actual Exam
Questions And Correct Answers (Verified
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1. A healthcare leader wants to describe the average length
of stay for patients on a medical unit. Which measure of
central tendency is most appropriate if the data are normally
distributed?
• A) Mode
• B) Median
• C) Mean
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• D) Range
Correct Answer: C) Mean
Rationale: For normally distributed data without extreme
outliers, the mean best represents the average because it uses
all data points.
2. A clinic’s patient wait times are skewed to the right (positive
skew). Which measure should be reported to best represent
typical wait time?
• A) Mean
• B) Median
• C) Standard deviation
• D) Interquartile range
Correct Answer: B) Median
Rationale: The median is resistant to skew and outliers,
providing a better central value for skewed distributions.
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3. A hospital reports a standard deviation of 2.5 days for
length of stay. This means:
• A) Most patients stay exactly 2.5 days
• B) The average deviation from the mean is 2.5 days
• C) 68% of stays fall within ±2.5 days of the mean
• D) The range is 5 days
Correct Answer: B) The average deviation from the mean is
2.5 days
Rationale: Standard deviation measures the average distance
of each data point from the mean.
4. In a normal distribution, approximately what percentage of
data falls within ±2 standard deviations of the mean?
• A) 68%
• B) 75%
• C) 95%
• D) 99.7%