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Y 6.2.38-T Question Help Use the standard normal distribution or the t-distribution to construct a 99% confidence interval for the population mean. Justify your decision. If neither distribution can be used, explain why. Interpret the results. In a recent season, the population standard deviation of the yards per carry for all running backs was 1.31. The yards per carry of 25 randomly selected running backs are shown below. Assume the yards per carry are normally distributed. 1.6 3.7 4.7 2.1 2.5 6.4 5.2 5.5 6.9 3.1 3.5 4.6 3.8 5.4 4.6 4.4 3.1 3.7 2.8 4.3 2.6 5.4 3.2 5.7 6.7 Which distribution should be used to construct the confidence interval? OA. Use a t-distribution because n <30 and o is known nts B. Use a normal distribution because n < 30, the data are normally distributed and o is unknown. our C. Use a normal distribution because o is known and the data are normally distributed. OD. Use at-distribution because n< 30 and o is unknown. ess OE. Cannot use the standard normal distribution or the t-distribution because o is unknown, n < 30, and the data are not normally distributed. ccess Select the correct choice below and, if necessary, fill in any answer boxes to complete your choice. Libra OA. The 99% confidence interval is (Round to two decimal places as needed.) Pptions B. Neither distribution can be used to construct the confidence interval. ns ools ? Click to select and enter your answer(s) and then click Check Answer. Check Answer part remaining Clear All XP W tv NOV 11 MacBook Pro

Y 6.2.38-T Question Help Use the standard normal distribution or the t-distribution to construct a 99% confidence interval for the population mean. Justify your decision. If neither distribution can be used, explain why. Interpret the results. In a recent season, the population standard deviation of the yards per carry for all running backs was 1.31. The yards per carry of 25 randomly selected running backs are shown below. Assume the yards per carry are normally distributed. 1.6 3.7 4.7 2.1 2.5 6.4 5.2 5.5 6.9 3.1 3.5 4.6 3.8 5.4 4.6 4.4 3.1 3.7 2.8 4.3 2.6 5.4 3.2 5.7 6.7 Which distribution should be used to construct the confidence interval? OA. Use a t-distribution because n <30 and o is known nts B. Use a normal distribution because n < 30, the data are normally distributed and o is unknown. our C. Use a normal distribution because o is known and the data are normally distributed. OD. Use at-distribution because n< 30 and o is unknown. ess OE. Cannot use the standard normal distribution or the t-distribution because o is unknown, n < 30, and the data are not normally distributed. ccess Select the correct choice below and, if necessary, fill in any answer boxes to complete your choice. Libra OA. The 99% confidence interval is (Round to two decimal places as needed.) Pptions B. Neither distribution can be used to construct the confidence interval. ns ools ? Click to select and enter your answer(s) and then click Check Answer. Check Answer part remaining Clear All XP W tv NOV 11 MacBook Pro

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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I am unsure of what steps to take when finding the confidence interval. 

Y 6.2.38-T Question Help Use the standard normal distribution or the t-distribution to construct a 99% confidence interval for the population mean. Justify your decision. If neither distribution can be used, explain why. Interpret the results. In a recent season, the population standard deviation of the yards per carry for all running backs was 1.31. The yards per carry of 25 randomly selected running backs are shown below. Assume the yards per carry are normally distributed. 1.6 3.7 4.7 2.1 2.5 6.4 5.2 5.5 6.9 3.1 3.5 4.6 3.8 5.4 4.6 4.4 3.1 3.7 2.8 4.3 2.6 5.4 3.2 5.7 6.7 Which distribution should be used to construct the confidence interval? OA. Use a t-distribution because n <30 and o is known nts B. Use a normal distribution because n < 30, the data are normally distributed and o is unknown. our C. Use a normal distribution because o is known and the data are normally distributed. OD. Use at-distribution because n< 30 and o is unknown. ess OE. Cannot use the standard normal distribution or the t-distribution because o is unknown, n < 30, and the data are not normally distributed. ccess Select the correct choice below and, if necessary, fill in any answer boxes to complete your choice. Libra OA. The 99% confidence interval is (Round to two decimal places as needed.) Pptions B. Neither distribution can be used to construct the confidence interval. ns ools ? Click to select and enter your answer(s) and then click Check Answer. Check Answer part remaining Clear All XP W tv NOV 11 MacBook Pro
Transcribed Image Text:Y 6.2.38-T Question Help Use the standard normal distribution or the t-distribution to construct a 99% confidence interval for the population mean. Justify your decision. If neither distribution can be used, explain why. Interpret the results. In a recent season, the population standard deviation of the yards per carry for all running backs was 1.31. The yards per carry of 25 randomly selected running backs are shown below. Assume the yards per carry are normally distributed. 1.6 3.7 4.7 2.1 2.5 6.4 5.2 5.5 6.9 3.1 3.5 4.6 3.8 5.4 4.6 4.4 3.1 3.7 2.8 4.3 2.6 5.4 3.2 5.7 6.7 Which distribution should be used to construct the confidence interval? OA. Use a t-distribution because n <30 and o is known nts B. Use a normal distribution because n < 30, the data are normally distributed and o is unknown. our C. Use a normal distribution because o is known and the data are normally distributed. OD. Use at-distribution because n< 30 and o is unknown. ess OE. Cannot use the standard normal distribution or the t-distribution because o is unknown, n < 30, and the data are not normally distributed. ccess Select the correct choice below and, if necessary, fill in any answer boxes to complete your choice. Libra OA. The 99% confidence interval is (Round to two decimal places as needed.) Pptions B. Neither distribution can be used to construct the confidence interval. ns ools ? Click to select and enter your answer(s) and then click Check Answer. Check Answer part remaining Clear All XP W tv NOV 11 MacBook Pro
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