Help! please answer this:

2. The Quick Lube Company operates a chain of oil-change outlets in several states. When a customer comes in for service, the date of service and the mileage on the car are recorded. A computer program tracks the customers, and when three months have almost passed, a reminder email is sent to the customer. The marketing manager is interested in estimating the proportion of customers who return after getting an email. A simple random sample of 100 customers is surveyed. Ofthose 100 customers, 62 returned within one month of receiving the email. Construct a 98% confidence interval. a. What are p and a? (1 point) b. What is the critical value [2,3,2]? (1 point) c. Calculate o. Round to four decimal places. (1 point) d. Calculate the 98% condence interval. Round to four decimal places. (1 point)