The GPAs of all 5670 students enrolled at a university have an approximately normal distribution with a mean of 3.13 and a standard deviation of 0.33. Let x¯ be the mean GPA of a random sample of 39 students selected from this university. Find the mean and standard deviation of x¯ and comment on the shape of its sampling distribution. Round your answer for standard deviation to three decimal places. ?x¯= Enter you answer; mean ?x¯= Enter you answer; standard deviation The distribution is Choose your answer; The distribution is skewed to the rightapproximately normal.
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We are given that the population mean (μ) is 3.13 and the population standard deviation (σ) is 0.33. Show more…
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