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stomer satisfaction sponsored a survey ed. te is different than Select 3

stomer satisfaction sponsored a survey ed. te is different than Select 3

MATLAB: An Introduction with Applications
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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x3zqy7 es Jump to level 1 A home improvement company is interested in whether the customer satisfaction rate is different from the 60% currently claimed. The company sponsored a survey of 227 customers and found that 148 customers were satisfied. What is the test statistic z? Ex: 2.22 What is the p-value? Ex: 0.123 Does sufficient evidence exist that the customer satisfaction rate is different than the claim by the company at a significance level of a = 0.05? Select Check Next 3 Victor, et al. "Unexplained differences in sex ratios at birth in Europe and North America. BMJ. 324(7344), 27 AB
Transcribed Image Text:x3zqy7 es Jump to level 1 A home improvement company is interested in whether the customer satisfaction rate is different from the 60% currently claimed. The company sponsored a survey of 227 customers and found that 148 customers were satisfied. What is the test statistic z? Ex: 2.22 What is the p-value? Ex: 0.123 Does sufficient evidence exist that the customer satisfaction rate is different than the claim by the company at a significance level of a = 0.05? Select Check Next 3 Victor, et al. "Unexplained differences in sex ratios at birth in Europe and North America. BMJ. 324(7344), 27 AB
Expert Solution
Step 1: Determine the given data in the question

Let p be the population proportion of customer satisfaction rate.

Given that,

Population proportion left parenthesis p right parenthesis equals 60 percent sign equals 0.60

q equals 1 minus p equals 1 minus 0.60 equals 0.40

Sample size left parenthesis n right parenthesis equals 227

No. of customers were satisfied left parenthesis x right parenthesis equals 148

Level of significance left parenthesis alpha right parenthesis equals 0.05


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