Rating (0-10)
4
10
5
10
6
10
8
5
7
5
3
3
10
3
9
10
4
9
9
8
4
10
6
10
6
4
5
4
7
7
9
9
8
6
9
9
6
7
8
5
8
5
5
6
7
5
10
9
10
6
9
3
6
9
7
5
7
4
4
7
3
10
8
4
10
4
9 9
5	A market research firm surveys visitors to a new mall in Udaipur to develop experience ratings. The maximum possible rating is 10. Suppose a simple random sample of 68 mall visitors is selected and each visitor is asked to provide a rating for the new mall. The ratings obtained from the sample of 68 mall visitors is alongside.
a	Provide a point estimate of the population mean rating for the new mall in Udaipur
b	At 95% confidence, what is the margin of error?
c	What is the 95% confidence interval estimate of the mean?
d	What is the 99% confidence interval estimate of the mean?