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an airline company is interested in improving customer satisfaction rate from 80% currently claimed. The company sponsored a survey of 297 customers and found that

an airline company is interested in improving customer satisfaction rate from 80% currently claimed. The company sponsored a survey of 297 customers and found that 246 were satisfied.

What is the test statistic Z?

What is the p-value?

Does sufficient evidence exist that the customer satisfaction rate is higher than the claim by the company at a significance level on a=0.05? ?

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