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2) Suppose that a manufacturer of laptop batternes claims that his product last more than 950 hours. They test 45 batteries and found a sample mean of 925 hours and the population standard deviation of 5 hours. Use 5% significance level. Should the claim be accepted?

2) Suppose that a manufacturer of laptop batternes claims that his product last more than 950 hours. They test 45 batteries and found a sample mean of 925 hours and the population standard deviation of 5 hours. Use 5% significance level. Should the claim be accepted?

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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2) Suppose that a manufacturer of laptop batteries claims that his product last more than 950 hours. They test 45 batteries and found a sample mean of 925 hours and the population standard deviation of 55 hours Use 5% significance level Should the claim be accepted?
Transcribed Image Text:2) Suppose that a manufacturer of laptop batteries claims that his product last more than 950 hours. They test 45 batteries and found a sample mean of 925 hours and the population standard deviation of 55 hours Use 5% significance level Should the claim be accepted?
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