A home improvement company is interested in improving customer satisfaction rate from the 66% currently claimed. The company sponsored a survey of 227 customers and found that 158 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 - 0.01? Select 3

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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CHALLENGE
ACTIVITY
403984.1980994.qx3zqy7
4.6.3: Hypothesis test for a population proportion.
Jump to level 1
A home improvement company is interested in improving customer satisfaction
rate from the 66% currently claimed. The company sponsored a survey of 227
customers and found that 158 customers were satisfied.
What is the test statistic z? Ex: 2.22+
SUERES
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 = 0.01? Select
1
3
Check
Next
Feedback?
D
3
Transcribed Image Text:CHALLENGE ACTIVITY 403984.1980994.qx3zqy7 4.6.3: Hypothesis test for a population proportion. Jump to level 1 A home improvement company is interested in improving customer satisfaction rate from the 66% currently claimed. The company sponsored a survey of 227 customers and found that 158 customers were satisfied. What is the test statistic z? Ex: 2.22+ SUERES 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 = 0.01? Select 1 3 Check Next Feedback? D 3
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