An airline company is interested in improving customer satisfaction rate from the 57% currently claimed. The company sponsored a survey of 102 customers and found that 68 customers were satisfied....

An airline company is interested in improving customer satisfaction rate from the
57%
currently claimed. The company sponsored a survey of
102
customers and found that
68
customers 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 of
a= 0.05? (yes or no)