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An engineer wishes to design a test to find the mean resistance of a wire. He wants to determine a sample size so that if the mean is different than 0.8 ohms (say, in reality the mean is more than 0.15 ohms different from 0.8 in either direction), the test will detect this with high probability, like 90%. The standard deviation is known to be 0.9 and the significance level of the test 0.08. What is the required sample size? 111 X

An engineer wishes to design a test to find the mean resistance of a wire. He wants to determine a sample size so that if the mean is different than 0.8 ohms (say, in reality the mean is more than 0.15 ohms different from 0.8 in either direction), the test will detect this with high probability, like 90%. The standard deviation is known to be 0.9 and the significance level of the test 0.08. What is the required sample size? 111 X

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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An engineer wishes to design a test to find the mean resistance of a wire. He wants to determine a sample size so that if the mean is different than 0.8 ohms (say, in reality the mean is more than 0.15 ohms different from 0.8 in either direction), the test will detect this with high probability, like 90%. The standard deviation is known to be 0.9 and the significance level of the test 0.08. What is the required sample size? 111 X
Transcribed Image Text:An engineer wishes to design a test to find the mean resistance of a wire. He wants to determine a sample size so that if the mean is different than 0.8 ohms (say, in reality the mean is more than 0.15 ohms different from 0.8 in either direction), the test will detect this with high probability, like 90%. The standard deviation is known to be 0.9 and the significance level of the test 0.08. What is the required sample size? 111 X
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