Homework: Homework 9.3 Score: 0 of 1 pt 9.3.13 A survey was taken of the heights

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Homework: Homework 9.3 Score: 0 of 1 pt 9.3.13 A survey was taken of the heights, in inches, of 20-to 29-year-old males. A simple 5of6(O complete) HW Score: 0%, 0 of e Question Help Decide if a 95% t-interval can be constructed about the population mean. If no random sample of n 15 males 20 to 29 years old results in the data in the table. state the reason why Construct a 95% t-interval about the population mean. 65.1 72.8 67.3 66.5 71.9 72.5 69.7 67.5 68.7 71.4 70.8 O B. A t-interval can not be constructed because the data is not normal O C. A t-interval can not be constructed because there is an outlier. Select the correct choice below and, if necessary, fill in the answer boxes to 73.3 68.7 For convenience, a normal probability plot and boxplot are given complete your choice. Percent 0 A. The 95% confidence interval is (Round to two decimal places as needed.) O B. The interval cannot be found. 60 80 65 70 75 Height Click to select and enter your answer(s) and then click Check Answer. Clear All

Explanation / Answer

CI for 95% n 15 mean 69.74 t-value of 95% CI 2.1448 std. dev. 2.443713022 SE = std.dev./sqrt(n) 0.63096 ME = t*SE 1.35328 Lower Limit = Mean - ME 68.38672 Upper Limit = Mean + ME 71.09328 95% CI (68.3867 , 71.0933 )

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