CHDA EXAM 2 COMPREHENSIVE
ASSESSMENT 2026 COMPLETE
QUESTIONS AND ANSWERS
◉ Which of these software packages is a RDMS?
a. SAS
b. SPSS
c. Access
d. SQL
Answer: c. Access
◉ 86. Which of the following is true of the median?
a. It is a measure of variability.
b. It is difficult to calculate.
c. It is based on the whole distribution.
d. It is sensitive to extreme values.
Answer: It is based on the whole distribution.
◉ The ____ is a statistic that measures the amount of variance in a
dependent variable explained by one or more independent
variables.
,Answer: coefficient of determination
◉ 87. The CPT codes for emergency department visits are:
99281—Level 1 Emergency Department Visit
99282—Level 2 Emergency Department Visit
99283—Level 3 Emergency Department Visit
99284—Level 4 Emergency Department Visit
99285—Level 5 Emergency Department Visit
This set of CPT codes in an example of _____.
a. Nominal data
b. Interval data
c. Ratio data
d. Ordinal data
Answer: d. Ordinal data
◉ ____ are a useful method for displaying the relationship between
two categorical variables.
Answer: Contingency tables
,◉ 88. During an influenza outbreak, a nursing home reports 25 new
cases of influenza in a given month. These 25 cases represent 30
percent of the nursing home's population. This rate represents the
_____.
a. Prevalence rate
b. Incidence rate
c. Frequency
d. Distribution
Answer: Incidence rate
◉ There were 25 inpatient deaths, including newborns, at
Community Memorial Hospital during the month of June. The
hospital performed five autopsies during the same period. The gross
autopsy rate for the hospital for June was _____.
a. 0.02 percent
b. 0.2 percent
c. 5 percent
d. 20 percent
Answer: The numerator for the gross autopsy rate is the number of
autopsies performed for the period. The denominator of the gross
autopsy rate is the total inpatient deaths for the period. Using this
data, five patients had autopsies performed out of the 25 deaths;
therefore, 5/25 = 0.2 × 100 = 20%
, ◉ The null hypothesis that the mean time it takes insurance
companies to comply with new regulations is four months is
rejected in favor of an alternative hypothesis that it takes longer
than four months. However, the population mean is four months.
What type of error is this?
a. Type I error
b. Type II error
c. Type III error
d. All of the above
Answer: Type I error
A type I error is made when the null hypothesis is rejected when it is
actually true
◉ 91. The descriptive statistic most often used with nominal and
ordinal data is _____.
a. Median
b. Frequency distribution
c. Z-test
d. Confidence interval
Answer: b. Frequency distribution
ASSESSMENT 2026 COMPLETE
QUESTIONS AND ANSWERS
◉ Which of these software packages is a RDMS?
a. SAS
b. SPSS
c. Access
d. SQL
Answer: c. Access
◉ 86. Which of the following is true of the median?
a. It is a measure of variability.
b. It is difficult to calculate.
c. It is based on the whole distribution.
d. It is sensitive to extreme values.
Answer: It is based on the whole distribution.
◉ The ____ is a statistic that measures the amount of variance in a
dependent variable explained by one or more independent
variables.
,Answer: coefficient of determination
◉ 87. The CPT codes for emergency department visits are:
99281—Level 1 Emergency Department Visit
99282—Level 2 Emergency Department Visit
99283—Level 3 Emergency Department Visit
99284—Level 4 Emergency Department Visit
99285—Level 5 Emergency Department Visit
This set of CPT codes in an example of _____.
a. Nominal data
b. Interval data
c. Ratio data
d. Ordinal data
Answer: d. Ordinal data
◉ ____ are a useful method for displaying the relationship between
two categorical variables.
Answer: Contingency tables
,◉ 88. During an influenza outbreak, a nursing home reports 25 new
cases of influenza in a given month. These 25 cases represent 30
percent of the nursing home's population. This rate represents the
_____.
a. Prevalence rate
b. Incidence rate
c. Frequency
d. Distribution
Answer: Incidence rate
◉ There were 25 inpatient deaths, including newborns, at
Community Memorial Hospital during the month of June. The
hospital performed five autopsies during the same period. The gross
autopsy rate for the hospital for June was _____.
a. 0.02 percent
b. 0.2 percent
c. 5 percent
d. 20 percent
Answer: The numerator for the gross autopsy rate is the number of
autopsies performed for the period. The denominator of the gross
autopsy rate is the total inpatient deaths for the period. Using this
data, five patients had autopsies performed out of the 25 deaths;
therefore, 5/25 = 0.2 × 100 = 20%
, ◉ The null hypothesis that the mean time it takes insurance
companies to comply with new regulations is four months is
rejected in favor of an alternative hypothesis that it takes longer
than four months. However, the population mean is four months.
What type of error is this?
a. Type I error
b. Type II error
c. Type III error
d. All of the above
Answer: Type I error
A type I error is made when the null hypothesis is rejected when it is
actually true
◉ 91. The descriptive statistic most often used with nominal and
ordinal data is _____.
a. Median
b. Frequency distribution
c. Z-test
d. Confidence interval
Answer: b. Frequency distribution
