TS Statistical Analysis & Reporting 3

Question 1

Which correlation coefficient value indicates the STRONGEST linear relationship between two test metrics?

Accepted Answer

-0.87

Answer

The strength of correlation is determined by the absolute value; -0.87 has the highest absolute value (0.87) among the options.

Question 2

A test specialist is comparing defect rates across three different development teams. Which statistical test is MOST appropriate?

Accepted Answer

ANOVA

Answer

ANOVA (Analysis of Variance) is used to compare means across three or more groups simultaneously.

Question 3

In test metrics reporting, 'test effectiveness' is BEST defined as:

Accepted Answer

Percentage of defects found by testing versus total defects

Answer

Test effectiveness measures how well testing identifies defects compared to the total number of defects that exist.

Question 4

When creating a test progress report, which metric BEST indicates whether testing will complete on schedule?

Accepted Answer

Test case execution rate compared to planned rate

Answer

Comparing actual test execution rate to the planned rate directly indicates whether the project is on track to complete testing on time.

Question 5

A p-value of 0.03 in a statistical hypothesis test means:

Accepted Answer

There is a 3% probability of observing these results if the null hypothesis is true

Answer

The p-value represents the probability of obtaining results at least as extreme as observed, assuming the null hypothesis is true.

(TS) Test Specialist Certification Practice Test