An airline company is interested in improving customer satisfaction rate from the 50% currently claimed. The company sponsored a survey of 125 customers and found that 71 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 higher than the claim by the company at a significance level of ? = 0.01? Select
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Step 1
First, we need to find the sample proportion of satisfied customers (p-hat). Since 1 customer out of 125 is satisfied, we have: p-hat = 1/125 Show more…
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