If the Z statistic (critical value)is incorrectly used in lieu of the t statistic when comparing two means from independent populations using small samples,the chance of committing a Type II error __________.
A)Increases
B)Decreases
C)Remains the same

Question

Quizplus · Accepted Answer

When comparing two means from independent populations using small samples, the appropriate test statistic is the t statistic. If the Z statistic is used instead, it results in wider confidence intervals and a greater chance of committing a Type II error (failing to reject a false null hypothesis). Therefore, the chance of committing a Type II error increases.

If the Z Statistic (Critical Value)is Incorrectly Used in Lieu