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The grade point average (GPA) of 15 randomly selected college students are: 2.3, 3.3, 2.6, 1.8, 0.2, 3.1, 4.0, 0.7, 2.3, 2.0, 3.1, 3.4, 1.3,
The grade point average (GPA) of 15 randomly selected college students are:
2.3, 3.3, 2.6, 1.8, 0.2, 3.1, 4.0, 0.7, 2.3, 2.0, 3.1, 3.4, 1.3, 2.6, 2.6
a.) Find the sample mean:
b.) Find the sample standard deviation
c.) Construct a 99% confidence interval for the population mean. Show your work.
I have a and b correct but need assistance on how to get c.
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