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This question was created from Unit Exercise 8 BUSI 1013 Statistics for Business 11.docx https://www.coursehero.com/file/44902693/Unit-Exercise-8-BUSI-1013-Statistics-for-Business-11docx/

5” What are the null and alternative hypothesis for this research? What are the sample mean waiting time for checkout line and the sample standard
deviation for the have stores? Compute the test statistict used to test the hypothesis. Note that the population
standard deviations are not known and therefore you cannot use the formula in Section
10.1. Use the one in Section 10.2 instead. Compute the degree of freedom for the test statistic t. Can the chain conclude that the mean waiting time for checkout at Store 1 is lower than
that of Store 2? Use the critical-value approach and o = 0.05 to conduct the hypothesis
test. Construct a 95% conﬁdence interval for the difference of mean waiting time for
checkout line at the two stores.

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