To compare the prices charged by the same retailers in their shops and on their websites, which of the following statistical tests is appropriate?
A) Independent samples t-test
B) Paired-samples t-test
C) ANOVA
D) One-sample t-test

Question

Quizplus · Accepted Answer

The paired-samples t-test is appropriate for comparing the prices charged by the same retailers in their shops and on their websites because it compares the means of two related groups. The prices in shops and on websites are related as they are from the same retailer. In a paired-samples t-test, each individual in one group is paired with an individual in the other group, and the two groups are compared based on the differences between the pairs.

To Compare the Prices Charged by the Same Retailers in Their