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The waiting time to check out of a supermarket has had a population mean of 8.09 minutes. Recently, in an effort to reduce the
The waiting time to check out of a supermarket has had a population mean of 8.09 minutes. Recently, in an effort to reduce the wating time, the supermarket has experimented with a system in which there in a single wating line with muta checkout servers. A sample of 00 customers was selected, and their mean walling time to check out was 8.72 minutes with a sample standard deviation of 44 minutes. Complete parts (1) through (d) Click here to view.cage 1 of the critical values for the 1Distribution." Click here to view 2 of the critical values for the At the 0.10 level of significance, using the critical value approach to hypothesis testing, is there evidence that the population mean waiting time to check out a les 09 What are the null and alterative hypotheses for this best? 5000 H 9.00 OD. How 8.72 H872 What is the test statistic for this test (Round to four decimal places as needed.) What is the critical value for this test (Round to four decimal places as needed.) OBH909 H59.09 H0.00 OCH8.72 H8.72 OF H.72 H36.72 What is the conclusion for this test? Since the test statistic is than the critical value, H. There is evidence to conclude that the population mean warting time to check out is less than 0.09 minutes b. At the 0.10 level of significance, using the p-value approach to hypothesis testing, is there evidence that the population mean waiting time to check out is less than 0.09 minutes? What is the p-value for the test? Round to four decimal places as needed.)
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