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19. A manufacturer of car batteries claims that the life of his batteries is approximately normally distributed with a standard deviation equal to 0.9 years. If a random sample of 10 out of 100 batteries to prove that his claim is correct. le Population Sample Variable 20. A cem

19. A manufacturer of car batteries claims that the life of his batteries is approximately normally distributed with a standard deviation equal to 0.9 years. If a random sample of 10 out of 100 batteries to prove that his claim is correct. le Population Sample Variable 20. A cem

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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19. A manufacturer of car batteries claims that the life of his batteries is approximately normally distributed with a standard deviation equal to 0.9 years. If a random sample of 10 out of 100 batteries to prove that his claim is correct. Population Sample Variable 20. A cement manufacturer claims that the average weight of his product is 40 kgs with a standard deviation of 2.25 kgs. A sample of 45 kgs was taken and found to have a mean weight of 38.71 kgs. Are we going to accept the claim? MUJA Population Sample Variable
Transcribed Image Text:19. A manufacturer of car batteries claims that the life of his batteries is approximately normally distributed with a standard deviation equal to 0.9 years. If a random sample of 10 out of 100 batteries to prove that his claim is correct. Population Sample Variable 20. A cement manufacturer claims that the average weight of his product is 40 kgs with a standard deviation of 2.25 kgs. A sample of 45 kgs was taken and found to have a mean weight of 38.71 kgs. Are we going to accept the claim? MUJA Population Sample Variable
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