he manufacturer of a new eye cream claims that the cream reduces the appearance of fine lines and wrinkles after just 1414 days of application. To test the claim, 1010 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 1414 days of treatment. The following table displays the results. Test the claim at the 0.010.01 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 1212 1414 1313 1111 99 1515 1111 1515 99 1313 After 1010 1313 1313 1010 88 1212 1212 1414 1010 99Copy Data Step 2 of 3 : Compute the value of the test statistic. Round your answer to three decimal places.
he manufacturer of a new eye cream claims that the cream reduces the appearance of fine lines and wrinkles after just 1414 days of application. To test the claim, 1010 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 1414 days of treatment. The following table displays the results. Test the claim at the 0.010.01 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 1212 1414 1313 1111 99 1515 1111 1515 99 1313 After 1010 1313 1313 1010 88 1212 1212 1414 1010 99Copy Data Step 2 of 3 : Compute the value of the test statistic. Round your answer to three decimal places.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
Related questions
Question
he manufacturer of a new eye cream claims that the cream reduces the appearance of fine lines and wrinkles after just 1414 days of application. To test the claim, 1010 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 1414 days of treatment. The following table displays the results. Test the claim at the 0.010.01 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
Copy Data
| Before | 1212 | 1414 | 1313 | 1111 | 99 | 1515 | 1111 | 1515 | 99 | 1313 |
|---|---|---|---|---|---|---|---|---|---|---|
| After | 1010 | 1313 | 1313 | 1010 | 88 | 1212 | 1212 | 1414 | 1010 | 99 |
Step 2 of 3 :
Compute the value of the test statistic. Round your answer to three decimal places.
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