When is it appropriate to use the paired difference ttest Ch

When is it appropriate to use the paired difference t-test?

Choices:

When two independent samples are compared

When two dependent samples are compared

When four samples are compared at once

When any two samples are compared

Solution

Sol)

We use paired t test when two dependent samples are compared with equal sizes.

The sample selected from the first population is related to the corresponding sample from the second population.

It is important to distinguish independent samples and paired samples. Some examples are given as follows.

Compare the time that males and females spend watching TV.