Question

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 18 18 supermarkets from Region 1 had mean sales of 87.1 87.1 with a standard deviation of 6.5 6.5 . A random sample of 12 12 supermarkets from Region 2 had a mean sales of 80.8 80.8 with a standard deviation of 7.4 7.4 . Does the test marketing reveal a difference in potential mean sales per market in Region 2? Let μ 1  μ1 be the mean sales per market in Region 1 and μ 2  μ2 be the mean sales per market in Region 2. Use a significance level of α=0.01 α=0.01 for 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 H 0  H0 . Round your answer to three decimal places.

Answer 1

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