A random sample of size n= 20 was drawn from a population of size N= 200 ...

A random sample of size n= 20 was drawn from a population of size N= 200. The measurements shown in the table below were obtained.
38 24 49 24
29 22 52 25
40 51 26 40
26 38 51 40
48 41 46 53
a. Estimate µ with an approximate 95% confidence interval. (round the three decimal places as needed).
b. Estimate p, the proportion of measurements in the population that are greater than 30, with an approximate 95% confidence interval.