Houses with and without air conditioners on nine different streets in a certain city are shown below. Test (at the 5% level) the null hypothesis that having an air conditioner is independent of street locations of the houses.
|
Street
|
With A/C
|
Without A/C
|
|
1
|
5
|
18
|
|
2
|
8
|
35
|
|
3
|
18
|
25
|
|
4
|
3
|
38
|
|
5
|
17
|
24
|
|
6
|
11
|
31
|
|
7
|
25
|
17
|
|
8
|
19
|
20
|
|
9
|
18
|
18
|