Question
Answer

1 n 30

2 n>30? Yes

3 mean 22.5

4 sx 2.5

5 c 0.95

6



7 two tails 0.0500

8 left tail 0.0250

9 -zc -1.9604

10 zc 1.9604

11 E 0.8948

12 left lower 21.61

13 left upper 23.39

14 ci 21.61 < µ < 23.39