Practice Problems: Student data

Use the Student.xls file for the following problems:

- PRACTICE PROBLEM 1: You wish to know the average GPA of MBA students at Concordia. Compute the 95% confidence interval of the mean using the sample of 200 students. Describe your findings.

- PRACTICE PROBLEM 2: You wish to know the proportion of MBA students that are majoring in Finance. Compute the 95% confidence interval of the proportion using the sample of 200 students. Describe your findings.

- PRACTICE PROBLEM 3: You wish to learn the average age of an MBA student within 2 years and with 99% confidence. How large of a sample should you get? (Note: the standard deviation of the student ages is 8.93).

- PRACTICE PROBLEM 4: You wish to learn the proportion of MBA students that are female within 3%, and with 98% confidence. How large of a sample should you get?

Attachment:- Student Data.xls