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	# of Minutes		# of Min			Confidence Level
1	15					Data
2	3		Mean	9		Sample Standard Deviation	6
3	4		Standard Error	1.05773922		Sample Mean	9
4	30		Median	7.5		Sample Size	30
5	10		Mode	5		Confidence Level	95%
6	15		Standard Dvt	6
7	12		Sample Variance	33.564368		Standard Error of the Mean	1.095445
8	7		Kurtosis	5.34110558		Degrees of Freedom	29
9	10		Skewness	1.99321226		t Value	2.045230
10	5		Range	28		Interval Half Width	2.240437
11	8		Minimum	2
12	3		Maximum	30		Confidence Interval
13	5		Sum	263		Interval Lower Limit	6.759563
14	2		Count	30		Interval Upper Limit	11.240437
15	15
16	20
17	4
18	8
19	10
20	9
21	10
22	5
23	7
24	5
25	8
26	6
27	5
28	7
29	5
30	10