CHALLENGE ACTIVITY 3.13.1: Hypothesis test for a population proportion. 428338.2670904.qx3zqy7 Jump to level 1 " "

CHALLENGE 3.131 : Hypothesis test for a population proportion. ACTIVITY Jump to level 1 A home improvement company is interested in improving customer satisfaction rate from the 79% currently claimed. The company sponsored a survey of 193 customers and found that 163 customers were satisfied. What is the test statistic z? Ex: 222 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 ofa = 0.1? Select Select Yes No Feedback? References (*1) Grech, Victor, et al. "Unexplained differences in sex ratios at birth in Europe and North America.' BMJ, 324(7344), 27 April 2002,