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A home improvement company is interested in improving customer satisfaction rate from the 74% currently claimed. The company sponsored a survey of 141 customers and
A home improvement company is interested in improving customer satisfaction rate from the 74%
currently claimed. The company sponsored a survey of 141
customers and found that 112
customers were satisfied.
What is the test statistic z
?
What is the p
-value?
Does sufficient evidence exist that the customer satisfaction rate is different than the claim by the company at a significance level of =0.01
?
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