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In studying a random sample of 18 automotive batteries, the confidence interval (0.18,0.34) was constructed for the population standard deviation of the batteries' reserve capacity in hours. This population standard deviation should be less than 0.24 hour. Does the confidence interval suggest that the variation in the batteries' reserve capacities is at an acceptable level? Explain your reasoning. Choose the correct answer below. O A. Yes. All of the values in the confidence interval are less than 0.24. O B. No. Since the confidence interval contains 0.24 and values greater than 0.24, it does not suggest that the population standard deviation is less than 0.24. O C. No. All of the values in the confidence interval are greater than 0.24. O D. Yes. Since the confidence interval contains 0.24, it is likely that the population standard deviation is near 0.24.

In studying a random sample of 18 automotive batteries, the confidence interval (0.18,0.34) was constructed for the population standard deviation of the batteries' reserve capacity in hours. This population standard deviation should be less than 0.24 hour. Does the confidence interval suggest that the variation in the batteries' reserve capacities is at an acceptable level? Explain your reasoning. Choose the correct answer below. O A. Yes. All of the values in the confidence interval are less than 0.24. O B. No. Since the confidence interval contains 0.24 and values greater than 0.24, it does not suggest that the population standard deviation is less than 0.24. O C. No. All of the values in the confidence interval are greater than 0.24. O D. Yes. Since the confidence interval contains 0.24, it is likely that the population standard deviation is near 0.24.

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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In studying a random sample of 18 automotive batteries, the confidence interval (0.18,0.34) was constructed for the population standard deviation of the batteries' reserve capacity in hours. This population standard deviation should be less than 0.24 hour. Does the confidence interval suggest that the variation in the batteries' reserve capacities is at an acceptable level? Explain your reasoning. Choose the correct answer below. O A. Yes. All of the values in the confidence interval are less than 0.24. O B. No. Since the confidence interval contains 0.24 and values greater than 0.24, it does not suggest that the population standard deviation is less than 0.24. O C. No. All of the values in the confidence interval are greater than 0.24. O D. Yes. Since the confidence interval contains 0.24, it is likely that the population standard deviation is near 0.24.
Transcribed Image Text:In studying a random sample of 18 automotive batteries, the confidence interval (0.18,0.34) was constructed for the population standard deviation of the batteries' reserve capacity in hours. This population standard deviation should be less than 0.24 hour. Does the confidence interval suggest that the variation in the batteries' reserve capacities is at an acceptable level? Explain your reasoning. Choose the correct answer below. O A. Yes. All of the values in the confidence interval are less than 0.24. O B. No. Since the confidence interval contains 0.24 and values greater than 0.24, it does not suggest that the population standard deviation is less than 0.24. O C. No. All of the values in the confidence interval are greater than 0.24. O D. Yes. Since the confidence interval contains 0.24, it is likely that the population standard deviation is near 0.24.
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