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Suppose that in a sample of 28 Moraine Valley students, the mean amount of time they say they spend studying for classes each week is

Suppose that in a sample of 28 Moraine Valley students, the mean amount of time they say they spend studying for classes each week is 4.1 hours with a standard deviation of 1.3 hours.

a) What type of interval will you use to estimate the mean amount of time all Moraine Valley students spend studying for classes each week.

b) Calculate a 95% confidence interval for the mean amount of time all Moraine Valley students spend studying for classes each week.

c) Interpret your interval.

d) What is the margin of error?

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