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Name: Supporters claim that a new windmill can generate an average of at lea
Uploaded: 2024-03-20T07:07:12.000Z
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Description: Supporters claim that a new windmill can generate an average of at least 800 kilowatts of power per day. Daily power generation for the windmill is assumed to be normally distributed with a standard deviation of 120 kilowatts. A random sample of 100

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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Supporters claim that a new windmill can generate an average of at least 800 kilowatts of power per day. Daily power generation for the windmill is assumed to be normally distributed with a standard deviation of 120 kilowatts. A random sample of 100 days is taken to test this claim against the alternative hypothesis that the true mean is less than 800 kilowatts. The claim will not be rejected if the sample mean is 776 kilowatts or more and rejected otherwise.

a. What is the probability a of a Type I error using the decision rule if the population mean is, in fact, 800 kilowatts per day?
b. What is the probability b of a Type II error using this decision rule if the population mean is, in fact, 740 kilowatts per day?

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