The manufacturer of a new eye cream claims that the cream reduces the appearance of fine lines and wrinkles after just 1

[answerhappygod]

The Manufacturer Of A New Eye Cream Claims That The Cream Reduces The Appearance Of Fine Lines And Wrinkles After Just 1 1 (40.11 KiB) Viewed 21 times

The manufacturer of a new eye cream claims that the cream reduces the appearance of fine lines and wrinkles after just 14 days of application. To test the claim, 10 women are randomly selected to participate in a study. The number of fine lines and wrinkles that are visible around each participant's eyes is recorded before and after the 14 days of treatment. The following table displays the results. Test the claim at the 0.02 level of significance assuming that the population distribution of the paired differences is approximately normal. Let women before the treatment be Population 1 and let women after the treatment be Population 2. Number of Fine Lines and Wrinkles Before 11 12 11 11 15 12 14 13 12 After 9 10 7 8 14 12 10 13 8 14 15 Copy Data Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below. H:Hd = 0 Hd Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places. Step 3 of 3: Draw a conclusion and interpret the decision. a