Suppose we have a collection of the heights of all students at your college. Eac

Question

Suppose we have a collection of the heights of all students at your college. Each of the 300 people taking statistics randomly takes a sample of 35 of these heights and constructs a 90% confidence interval for the mean height of all students at the college. Which of the following statements about the confidence interval is most accurate? A) About 90% B) about 90% of the heights of all students at the college will be contained in these intervals. C) About 90% of the time a students sample mean height will be contained in his or her interval. D) About 90% of the intervals will contain the population mean height.

Explanation / Answer

ans-> D) About 90% of the intervals will contain the population mean height

Interpretation of 90% confidence interval of the mean :

If repeated samples were taken and the 90% confidence interval was computed for each sample, 90% of the intervals would contain the population mean.

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