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A home improvement company is interested in improving customer satisfaction rate from the 60% currently claimed. The company sponsored a survey of 285 customers and

A home improvement company is interested in improving customer satisfaction rate from the 60%

currently claimed. The company sponsored a survey of 285

customers and found that 185

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 =0.1?

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