D2L Resources: Proportion Confidence Section 7.1 - MAT 240: Applied St X Course Hero x Microsoft Office Home X + X - - C D a learn.zybooks.com/zybook/MAT-240-J1578-OL-TRAD-UG.22EW1/chapter/7/section/1 =zyBooks My library > MAT 240: Applied Statistics home > 7.1: Hypothesis test for a population proportion zyBooks catalog ? Help/FAQ Steve Atwell CHALLENGE ACTIVITY 7.1.3: Hypothesis test for a population proportion. 426854.2603902.qx3zqy7 Jump to level 1 An airline company is interested in improving customer satisfaction rate from the 75% currently claimed. The company sponsored a survey of 154 customers and found that 121 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 9 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 v 2 Check Next Feedback? CHALLENGE ACTIVITY 7.1.4: Excel: Hypothesis test for a population proportion. Click this link to download the spreadsheet for use in this activity. 426854.2603902.qx3zgy7 Start - - 0 68. F 2:54 PM Sunny 10/18/2022 6