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