AT 240: Applied Statistics home > 7.1: Hypothesis test for a population proportion zyBooks catalog ? Help/FAQ IGE 7.1.3: Hypothesis test for a population proportion. 2712214.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 224 customers and found that 175 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 = 0.1? Select v 2 Check Next Feedback? CHALLENGE X w 80'F Sunny arch hp f9 144 110 I 112 insort sc delete 16 0 % & C O backspace 5 Y U O D R G H K B N M