An administrator working in a child guidance center tests the hypothesis that family income will be related to number of treatment sessions attended.Her sample size is large, and her level of significance is .05.How should her critical region appear in her theoretical sampling distribution?
A)It should be split between the right and left tails, with .05 appearing in each tail.
B)It should be split between the right and left tails, with .025 appearing in each tail.
C)It should appear in the tail signifying a positive relationship, with .05 in that tail.
D)It should appear in the tail signifying a negative relationship, with .05 in that tail.

Question

Quizplus · Accepted Answer

Since the level of significance is 0.05, the critical region should be split between the right and left tails with 0.025 in each tail. This is because the hypothesis is a two-tailed test, meaning that the researcher is interested in detecting any relationship between family income and number of treatment sessions attended, regardless of whether it is positive or negative. Therefore, the critical region should be divided equally between the two tails.

An Administrator Working in a Child Guidance Center Tests the Hypothesis