CPT Data Analysis & Reporting 2

Question 1

A performance technologist notices that sales performance data shows high variance across regions. Which statistical measure best describes the spread of data around the mean?

Accepted Answer

Standard deviation

Answer

Standard deviation quantifies how much individual data points deviate from the mean, making it the best measure of spread.

Question 2

When analyzing training effectiveness data, a CPT finds a skewed distribution. Which measure of central tendency is MOST appropriate to report?

Accepted Answer

Median

Answer

The median is preferred over the mean for skewed distributions because it is not distorted by extreme outliers.

Question 3

A dashboard shows a KPI trending upward for three consecutive quarters, but the improvement is statistically non-significant. What should the CPT conclude?

Accepted Answer

The upward trend may be due to random variation

Answer

Without statistical significance, an observed trend could reflect random variation rather than a true performance change.

Question 4

Which type of chart is MOST effective for showing how a whole is divided into proportional parts for an executive audience?

Accepted Answer

Pie chart

Answer

Pie charts display part-to-whole relationships visually, making them suitable for showing proportional composition to executives.

Question 5

A CPT is designing a report to compare pre- and post-training performance for 50 employees. Which statistical test is MOST appropriate?

Accepted Answer

Paired t-test

Answer

A paired t-test compares means from the same group under two conditions (before and after), controlling for individual differences.

(CPT) Certified Performance Technologist Practice Test

(CPT) Certified Performance Technologist Practice Test

CPT Data Analysis & Reporting 2