WGU • MASTER OF HEALTHCARE ADMINISTRATION
WGU D514 OBJECTIVE ASSESSMENT A+
AND PRACTICE EXAM
2026/2027
Analytical Methods of Healthcare Leaders — Evidence-Based Decision Making & Analytics
A+ QUESTIONS 5 SECTIONS 100%
VERIFIED COMPLETE RATIONALES
CATEGORIES
■ 1. Data Types, Measurement Levels & Descriptive Statistics
■ 2. Inferential Statistics, Hypothesis Testing & Test Selection
■ 3. Research Design, Sampling & Study Validity
■ 4. Healthcare Analytics, Quality Metrics & Evidence-Based Decisions
■ 5. Predictive Analytics, Data Infrastructure & Population Health
STUVIAACTUALEXAM
Passing Score: 75% • 1 Mark per Question • Application / Analysis Level
, SECTION 1: Data Types, Measurement Levels & Descriptive Statistics
Q1. A hospital quality team records patient satisfaction scores on a 1–5 Likert scale. A healthcare leader asks what level of
measurement these scores represent. The correct classification is:
A. Nominal because the numbers are only labels
B. Ordinal because the values indicate rank order but the intervals between scores are not necessarily equal
C. Interval because zero means absence of satisfaction
D. Ratio because multiplication of scores is meaningful
Correct Answer: B
Rationale: Likert-type satisfaction scores are ordinal: higher numbers indicate greater satisfaction, yet the psychological distance between 2 and 3 may
differ from that between 4 and 5. Ratio operations are therefore inappropriate.
Q2. A dataset of emergency-department wait times (in minutes) is analyzed. The mean is 47 minutes, the median is 32 minutes, and
the distribution is right-skewed. For reporting central tendency to executives, the most appropriate measure is:
A. The median, because it is less influenced by extreme outliers in a skewed distribution
B. The mean, because it uses every value
C. The mode only
D. The range exclusively
Correct Answer: A
Rationale: In right-skewed data the mean is pulled upward by long waits. The median better represents the typical patient experience for leadership
decision-making.
Q3. Blood-pressure readings recorded in mm Hg are an example of which measurement level?
A. Nominal
B. Ordinal
C. Ratio
D. Interval
Correct Answer: C
Rationale: Blood pressure has a true zero and equal intervals; ratios (e.g., “twice as high”) are meaningful, placing it at the ratio level.
Q4. A quality analyst codes hospital units as 1 = Medical, 2 = Surgical, 3 = ICU. These codes are:
A. Ratio data allowing calculation of a meaningful average unit number
B. Interval data with equal spacing between units
C. Ordinal data ranked by acuity
D. Nominal categories; arithmetic operations on the codes are not meaningful
Correct Answer: D
Rationale: Numeric labels for mutually exclusive categories without order or equal intervals are nominal. Means or ratios of the codes have no
substantive interpretation.
Q5. A leader examines length-of-stay data and notes a standard deviation of 4.2 days. This statistic describes:
A. The most frequent length of stay
B. The average squared deviation of individual stays from the mean, quantifying dispersion
C. The midpoint of the ordered data
D. The difference between the highest and lowest value only
Correct Answer: B
Rationale: Standard deviation is the square root of variance and measures how widely individual observations spread around the mean.
Q6. In a histogram of laboratory turnaround times, the majority of values cluster at the low end with a long tail to the right. The
distribution is described as:
A. Right-skewed (positively skewed)
B. Left-skewed (negatively skewed)
C. Perfectly symmetric
D. Bimodal with equal peaks
Correct Answer: A
Rationale: A long right tail indicates positive (right) skew; most observations are relatively short, with occasional long delays.
WGU D514 OA | Page 2
WGU D514 OBJECTIVE ASSESSMENT A+
AND PRACTICE EXAM
2026/2027
Analytical Methods of Healthcare Leaders — Evidence-Based Decision Making & Analytics
A+ QUESTIONS 5 SECTIONS 100%
VERIFIED COMPLETE RATIONALES
CATEGORIES
■ 1. Data Types, Measurement Levels & Descriptive Statistics
■ 2. Inferential Statistics, Hypothesis Testing & Test Selection
■ 3. Research Design, Sampling & Study Validity
■ 4. Healthcare Analytics, Quality Metrics & Evidence-Based Decisions
■ 5. Predictive Analytics, Data Infrastructure & Population Health
STUVIAACTUALEXAM
Passing Score: 75% • 1 Mark per Question • Application / Analysis Level
, SECTION 1: Data Types, Measurement Levels & Descriptive Statistics
Q1. A hospital quality team records patient satisfaction scores on a 1–5 Likert scale. A healthcare leader asks what level of
measurement these scores represent. The correct classification is:
A. Nominal because the numbers are only labels
B. Ordinal because the values indicate rank order but the intervals between scores are not necessarily equal
C. Interval because zero means absence of satisfaction
D. Ratio because multiplication of scores is meaningful
Correct Answer: B
Rationale: Likert-type satisfaction scores are ordinal: higher numbers indicate greater satisfaction, yet the psychological distance between 2 and 3 may
differ from that between 4 and 5. Ratio operations are therefore inappropriate.
Q2. A dataset of emergency-department wait times (in minutes) is analyzed. The mean is 47 minutes, the median is 32 minutes, and
the distribution is right-skewed. For reporting central tendency to executives, the most appropriate measure is:
A. The median, because it is less influenced by extreme outliers in a skewed distribution
B. The mean, because it uses every value
C. The mode only
D. The range exclusively
Correct Answer: A
Rationale: In right-skewed data the mean is pulled upward by long waits. The median better represents the typical patient experience for leadership
decision-making.
Q3. Blood-pressure readings recorded in mm Hg are an example of which measurement level?
A. Nominal
B. Ordinal
C. Ratio
D. Interval
Correct Answer: C
Rationale: Blood pressure has a true zero and equal intervals; ratios (e.g., “twice as high”) are meaningful, placing it at the ratio level.
Q4. A quality analyst codes hospital units as 1 = Medical, 2 = Surgical, 3 = ICU. These codes are:
A. Ratio data allowing calculation of a meaningful average unit number
B. Interval data with equal spacing between units
C. Ordinal data ranked by acuity
D. Nominal categories; arithmetic operations on the codes are not meaningful
Correct Answer: D
Rationale: Numeric labels for mutually exclusive categories without order or equal intervals are nominal. Means or ratios of the codes have no
substantive interpretation.
Q5. A leader examines length-of-stay data and notes a standard deviation of 4.2 days. This statistic describes:
A. The most frequent length of stay
B. The average squared deviation of individual stays from the mean, quantifying dispersion
C. The midpoint of the ordered data
D. The difference between the highest and lowest value only
Correct Answer: B
Rationale: Standard deviation is the square root of variance and measures how widely individual observations spread around the mean.
Q6. In a histogram of laboratory turnaround times, the majority of values cluster at the low end with a long tail to the right. The
distribution is described as:
A. Right-skewed (positively skewed)
B. Left-skewed (negatively skewed)
C. Perfectly symmetric
D. Bimodal with equal peaks
Correct Answer: A
Rationale: A long right tail indicates positive (right) skew; most observations are relatively short, with occasional long delays.
WGU D514 OA | Page 2
