What is the test statistic z

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An airline company is interested in improving customer satisfaction rate from the 75% currently claimed. The company sponsored a survey of 213 customers and found that 171 customers were satisfied.

What is the test statistic z

What is the p-value

Does sufficient evident exist that the customer satisfaction rate is higher than the claim by the company at a significance level of a=0.01

Reference no: EM132843684

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