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CHALLENGE ACTIVITY 7.1.3: Hypothesis test for a population proportion. Jump to level 1 A home improvement company is interested in improving customer satisfaction rate from the 80% currently claimed. The company sponsored a survey of 131 customers and found that 113 customers were satisfied. Determine whether sufficient evidence exists that the customer satisfaction rate is different than the claim by the company. What is the test statistic z? Ex: 2.22 What is the p-value? Ex: 0.123 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