Suppose we take repeated random samples of 50 college students from the same pop

Question

Suppose we take repeated random samples of 50 college students from the same population and determine a 95% confidence interval for the mean GPA from each sample. Which of the following statements is true regarding the confidence intervals? Check all that apply. A. The intervals are centered around population mean GPA. B. The interval are centered around the sample mean GPA. C. 95% of the intervals will contain the sample mean in the long run. D. 95% of the will contain the population mean in the long run. A survey of random sample of 1, 500 young Americans found that 87% had earned their high school diploma. Based on these results, the 95% confidence interval for the proportion of young Americans who have their high school diploma is What is the margin of error for this confidence interval? A. 0.017 B. 0.87 C. 0.034 D. 0.95

Explanation / Answer

Q-4

Part-B,D

Q-5

ME=(0.887-0.853)/2=0.017

Part-A

These are correct answers and can be used directly

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