Unit 10 Lab Quiz Time Remaining: 1:56:33 ( Alexand E Question 4 of 10 (1 point) | Question Attempt: 1 of 1 2 5 6 7 8 9 10 Freshmen GPAs First-semester GPAs for a random selection of freshmen at a large university are shown. Estimate the true mean GPA of the freshman class with 90% confidence. Assume o = 0.62. Round intermediate and final answers to two decimal places. Assume the population is normally distributed. 3.2 2.8 2.7 2.5 1.9 2.0 2.7 3.8 3.0 2.8 3.3 2.7 2.9 2.0 3.2 1.9 2.8 2.2 4.0 1.9 2.8 2.0 2.7 3.9 Send data to Excel