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12) A sample of 41 light bulbs had a mean lifetime of 599 hours. A 95% confidence interval for the population mean was 593.8

12) A sample of 41 light bulbs had a mean lifetime of 599 hours. A 95% confidence interval for the population mean was 593.8

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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12) A sample of 41 light bulbs had a mean lifetime of 599 hours. A 95% confidence interval for the population mean was 593.8 <u<604.2 Which one of the following statements is the correct interpretation of the results? A) The probability that the population mean is between 593.8 hours and 604.2 hours is 0.95. B) We are 95% confident that the mean lifetime of all the bulbs in the population is between 593.8 hours and 604.2 hours. C) None of these are true. D) 95% of the light bulbs in the sample had lifetimes between 593.8 hours and 604.2 hours
Transcribed Image Text:12) A sample of 41 light bulbs had a mean lifetime of 599 hours. A 95% confidence interval for the population mean was 593.8 <u<604.2 Which one of the following statements is the correct interpretation of the results? A) The probability that the population mean is between 593.8 hours and 604.2 hours is 0.95. B) We are 95% confident that the mean lifetime of all the bulbs in the population is between 593.8 hours and 604.2 hours. C) None of these are true. D) 95% of the light bulbs in the sample had lifetimes between 593.8 hours and 604.2 hours
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