3 a) Construct a confidence intervals of the variable "Miles.driven" for the estimate of the population mean (i.e., mean of annual miles driven), by gender at 96% levels.

b) Additionally, what is your interpretation of the confidence interval.

c) If insurance companies charge premiums based on the annual miles driven, is it warranted for insurance companies to charge male drivers higher premiums based on this data set? Explain.

q3 data: https://docs.google.com/spreadsheets/d/15KO9nFN94hGXQrYHRR17Rh5An6aD3q8lLJP7t5SO0BM/