What is the best estimate of the population mean

Develop a 95% confidence interval for the population mean.

Develop a 90% confidence interval for the population mean.

Develop a 98% confidence interval for the population mean.

Interpret the confidence interval.

#residents	rating 1-5
1	4
2	3
3	3
4	1
5	5
6	2
7	4
8	2
9	4
10	4
11	3
12	4
13	4
14	3
15	2
16	1
17	4
18	3
19	4
20	1
21	3
22	4
23	3
24	5
25	3
26	4
27	5
28	4
29	5
30	2