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A district sales manager wishes to determine whether there is a difference in mean daily sales
volume between two stores in his district. He collects daily sales volume for the month of June to
do the analysis. Assume that the population standard deviations are unknown and unequal. The
hypothesis test is to be conducted using the 0.01 level of significance. Partial output of his results
from Excel can be found in the table below: What is the critical value of the test statistic? a. pm
2.395 b. -1.645 C. pm 2.667 d. pm 1.960

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  • 1. A district sales manager wishes to determine whether there is a difference in mean daily sales volume between two stores in his district. He collects daily sales volume for the month of June to do the analysis. Assume that the population standard deviations are unknown and unequal. The hypothesis test is to be conducted using the 0.01 level of significance. Partial output of his results from Excel can be found in the table below: What is the critical value of the test statistic? a. pm 2.395 b. -1.645 C. pm 2.667 d. pm 1.960