1.A random sample of 36 Wingate University students was asked to indicate how many times (per semester) they approach a faculty member outside of class to ask a question.The data is given in the table below:

3

0

1

0

0

8

6

4

2

20

0

5

0

4

0

0

1

0

0

1

0

1

4

0

3

0

0

1

0

8

16

4

3

0

0

1

(a)Estimate the variance in the number of times Wingate University students approach a faculty member outside of class to ask a question with 90% confidence.

(b)Estimate the mean number of times Wingate University students who approach a faculty member outside of class to ask a question with 90% confidence.

(c)Estimate the proportion of Wingate University students who approach a faculty member outside of class to ask a question with 90% confidence.