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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Question

A home improvement company is interested in improving customer satisfaction rate from the 70% currently claimed. The company sponsored a survey of 219 customers and found that 162 customers were satisfied. Determine whether sufficient evidence exists that the customer satisfaction rate is different than the claim by the company.

457270.3064540.qx3zqy7 Jump to level 1 A home improvement company is interested in improving customer satisfaction rate from the 70% currently claimed. The company sponsored a survey of 219 customers and found that 162 customers were satisfied. Determine whether sufficient evidence exists that the customer satisfaction rate is different than the claim by the company. What is the test statistic z? Ex: 1.23 What is the p-value? Ex: 0.456 Does sufficient evidence exist that the customer satisfaction rate is different than the claim by the company at a significance level of a = 0.01? Select ✓ Check Next 2 3 1 2 3 Feedback?
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Transcribed Image Text:457270.3064540.qx3zqy7 Jump to level 1 A home improvement company is interested in improving customer satisfaction rate from the 70% currently claimed. The company sponsored a survey of 219 customers and found that 162 customers were satisfied. Determine whether sufficient evidence exists that the customer satisfaction rate is different than the claim by the company. What is the test statistic z? Ex: 1.23 What is the p-value? Ex: 0.456 Does sufficient evidence exist that the customer satisfaction rate is different than the claim by the company at a significance level of a = 0.01? Select ✓ Check Next 2 3 1 2 3 Feedback?
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