Question

I need help with this question c)The grade point averages​ (GPA) for 12 randomly selected college

students are shown on the right. Complete parts​ (a) through​ (c) below.

 Assume the population is normally distributed.

2.2

1.8

2.3

0.3

3.4

0.5

1.4

2.3

2.9

4.0

3.6

3.4

C) Construct a 90% confidence interval for the population mean

A 90% confidence interval for the population mean is

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