The marketing manager of a firm that produces laundry products decides to test market a new laundry product in each of the firm's two sales regions. He wants to determine whether there will be a difference in mean sales per market per month between the two regions. A random sample of 12 supermarkets from Region 1 had mean sales of 88 with a standard deviation of 5.6. A random sample of 17 supermarkets from Region 2 had a mean sales of 76.9 with a standard deviation of 6.3. Does the test marketing reveal a difference in potential mean sales per market in Region 2? Let μ1 be the mean sales per market in Region 1 and μ2 be the mean sales per market in Region 2. Use a significance level of α=0.05for the test. Assume that the population variances are not equal and that the two populations are normally distributed.
Step 3 of 4 : Determine the decision rule for rejecting the null hypothesis H0. Round your answer to three decimal places.
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2018-11-19T05:40:52-0500
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