O Menu Zy Section 7.1 - MAT 240: App X Course Hero | Make every s X + Q X > =zyBooks My library > MAT 240: Applied Statistics home > 7.1: Hypothesis test for a population proportion zyBooks catalog Help/FAQ Feedback? CHALLENGE ACTIVITY 7.1.3: Hypothesis test for a population proportion. 387962.2528628.qx3zqy7 V Jump to level 1 An airline company is interested in improving customer satisfaction rate from the 75% currently claimed. w " - The company sponsored a survey of 256 customers and found that 205 customers were satisfied. Determine whether sufficient evidence exists that the customer satisfaction rate is higher than the claim by the company. What 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 company at a significance level of a = 0.05? Select 2 3 Check Next Feedback? CHALLENGE O W E