Problem #1

1. Conduct a single-sample t-test for the following data set, assuming that m = 25.00,

s_M= 2.98.

23 40 10 25 32 15 18 22 35 10 17

2. Determine the critical values (for a two-tailed test with an alpha of .05) that you should use to evaluate this t-score.

Problem #2

1. Conduct an independent-measures t-test using the following data set (s_{(M1 - M2)}= 1.57 ):

Group 1: 5 10 15 12 4 11 6 10 8 7

Group 2: 8 5 0 6 9 3 1 4

2. Determine the critical values (for a two-tailed test with an alpha of .05) that you should use to evaluate this t-score.

Problem #3

1. Conduct a related-sample t-test using the following data set.

Each row represents a pair of scores. (s_MD= 3.01)

A	B	Diffs
21	4	-17
35	38	3
31	15	-16
30	18	-12
25	27	2
14	18	4
30	20	-10
32	12	-20
20	20	0

2. Determine the critical values (for a two-tailed test with an alpha of .05) that you should use to evaluate this t-score.