Hypothesis test for a population proportion. mp to level 1 irline company is interested in improving customer satisfaction rate from the 63% currently claimed company sponsored a survey of 198 customers and found that 137 customers were satisfied. ermine whether sufficient evidence exists that the customer satisfaction rate is higher than the claim company. That is the test statistic z? Ex: 1.23 what is the p-value? Ex: 0.456 Does sufficient evidence exist that the customer satisfaction rate is different than the claim by the co at a significance level of a = 0.1? Select v

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A: The hypothesized mean is 140.

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Q: Illustrates the effect of  significance level on the power of a two-sample t test?

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