MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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A software company is interested in improving customer satisfaction rate from the 74% currently claimed. The company sponsored a survey of 296 customers and found that 231 customers were satisfied. What is the test statistic z? Ex: 2.22
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Transcribed Image Text:A software company is interested in improving customer satisfaction rate from the 74% currently claimed. The company sponsored a survey of 296 customers and found that 231 customers were satisfied. What is the test statistic z? Ex: 2.22
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Z-Test:  Here the hypothesis test is for the population proportion. The test statistics compared with the normal distribution, and this type of test is known as Z-test

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