The appropriate hypothesis test to use for a between-groups design with two groups is a(n):
A) z test.
B) paired-samples t test.
C) independent-samples t test.
D) single-sample t test.

Question

Quizplus · Accepted Answer

The appropriate hypothesis test to use for a between-groups design with two groups is an independent-samples t test. This test is used to determine if there is a statistically significant difference between the means of two independent groups. Option A, z test, is not appropriate for small sample sizes. Option B, paired-samples t test, is used for within-group designs where the same individuals are measured twice. Option D, single-sample t test, is used when comparing a sample mean to a known population mean.

The Appropriate Hypothesis Test to Use for a Between-Groups Design