a. For each situation, find Z(critical).

Alpha Form Z(Critical)

.05 One-tailed

.10 Two-tailed

.06 Two-tailed

.01 One-tailed

.02 Two-tailed

b. For each situation, find the critical t score.

Alpha Form N t (Critical)

.10 Two-tailed 31

.02 Two-tailed 24

.01 Two-tailed 121

.01 One-tailed 31

.05 One-tailed 61

c. Compute the appropriate test statistic (Z or t)

for each situation:

1. m
2.40

2.20 s
0.75 N
200 2. m
17.1

16.8 s
0.9 N
45 3. m
10.2

9.4 s
1.7 N
150 4. Pu
.57 Ps
0.60 N
117 5. Pu
0.32 Ps
0.30 N
322