We measure the self-esteem scores of a sample of statistics students, reasoning that this course may lower their self-esteem relative to that of the typical college student 1 ? 5 55 and ?X 5 11.352 . We obtain these scores:
|
44
|
55
|
39
|
28
|
27
|
38
|
36
|
24
|
36
|
(a) Summarize your sample data. (b) Is this a one-tailed or two-tailed test? Why? (c) What are H0 and Ha ? (d) Compute zobt. (e) With ? = .05, what is zcrit ? (f) What should we conclude about the relationship here?