First-semester GPAs for a random selection of freshmen at a large university are shown below. Estimate the true mean GPA of the freshman class with99%confidence. Assume= 0.62. Use a graphing calculator and round the answers to two decimal places. Assume the population is normally distributed.

1.9

4

2.2

2.8

2.9

2.1

3.8

2.7

2.1

2.4

2

1.9

2.5

2.7

2.8

3

3.4

3.5

3.8

2.7