Question: For his senior project, Jerry wants to know the average GPA of students at his high school. He surveys 27 students and finds that the

For his senior project, Jerry wants to know the average GPA of students at his high school. He surveys 27 students and finds that the sample has a mean GPA of 2.45 and standard deviation of 0.63. Construct a 98 % confidence interval for the population mean GPA. Assume the population is normally distributed. Choose the correct confidence interval and critical value used in the calculation. O (2.15, 2.75) (to = 2.4786) O (2.17, 2.73) (Zc = 2.326) O (2.2, 2.7) (Zc = 2.054) O (2.15, 2.75) (to = 2.4671) O (2.15, 2.75) (to = 2.4727)

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