please use excel... correct answers will receive likes The owner of...
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please use excel... correct answers will receive likes
The owner of a large car dealership believes that the financial crisis decreased the number of customers visiting her dealership. The dealership has historically had 800 customers per day. The owner takes a sample of 100 days and finds the average number of customers visiting the dealershipper day was 750. Assume that the population standard deviation is 350. a. Specify the null and alternative hypotheses. b. Calculate the value of the test statistic (Round to two decimal places) c. What is the p-value? (Round to four decimal places) a. At a 5% significance level, what is the critical value? (Round to two decimal places) e. At a 5% significance level, the decision is to
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