Home x B 7-2 Challenge Activities: Proportisection 7.1 - MAT 240: Applied St X Homework Help - Q&A from Onl x + X - > C D learn.zybooks.com/zybook/MAT-240-J2639-OL-TRAD-UG.21EW2/chapter/7/section/1 =zyBooks My library > MAT 240: Applied Statistics home > 7.1: Hypothesis test for a population proportion zyBooks catalog ? Help/FAQ Daniel Corban Feedback? CHALLENGE ACTIVITY 7.1.3: Hypothesis test for a population proportion. 359870.2287224.qx3zqy7 Jump to level 1 An airline company is interested in improving customer satisfaction rate from the 51% currently claimed. The company sponsored a survey of 170 customers and found that 99 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? 1.75 What is the p-value? Ex: 0.123 9 Does sufficient evidence exist that the customer satisfaction rate is higher than the claim by the company at a significance level of a = 0.1? 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. 359870.2287224.qx3zqy7 Start In order for a candy company to claim that a bridge mix is mostly chocolate stars, a proportion of at least 0.8 of the packages must contain 3 ounces or more of chocolate stars. Quality control tests a random sample of 50 packages to determine if the proportion is less than 0.8 at a significance level of 0.05. Llan Chant 6 of the X W 3:13 PM 12/6/2021