The marketing manager of a firm that produces laundry products decides to test m

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 17 supermarkets from Region 1 had mean sales of 86.2 with a standard devation of 8. A random sample of 13 supermarkets from Region 2 had a mean sales of 82.2 with a standard devilation of 7.3. Does the test marketing reveal a difference in potential mean sales per market in Region 2? Let pi be the mean sales per market in Region 1 and p2 be the mean sales per market in Region 2. Use a significance level of a 0.1 for the test. Assume that the population variances are not equal and that the two populations are normally distributed tep 3 of 4:Determine the decision rule for rejecting the null hypothesis Ho-Round your answer to three decimal places Answer Tables i-Keypad Previcus Step Answers Previous Step Answers Reject Ho if st satistic1426

Explanation / Answer

Reject null hypothesis if test statistic=1.426 < t critical = -1.701 or test statistic=1.426 > t critical 1.701

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