Man Woman 1342 1794 2345 2802 1418 1522 A researcher believes that automobile repair shops give different estimates to w

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Man Woman 1342 1794 2345 2802 1418 1522 A Researcher Believes That Automobile Repair Shops Give Different Estimates To W 1 (69.44 KiB) Viewed 44 times

Man Woman 1342 1794 2345 2802 1418 1522 A researcher believes that automobile repair shops give different estimates to women than to men. Using two cars with identical defects, one car was assigned to a man and the other was assigned to a woman. Over the course of several weeks, each car was taken to eight randomly selected repair shops, so that each car was taken to each shop exactly once. The dataset contains the cost estimate (in dollars) provided by each shop. 3884 4176 5 1964 1762 6 1986 2419 7 1616 2080 8 1285 1058 The data is provided in a separate file on the course website. We want to use a sign test to determine if the typical cost estimate is greater for women than it is for men. Question 1. What are the null and alternative hypotheses for this test? Question 2. Why is it necessary to use a nonparametric sign test instead of a parametric t test? Provide statistical evidence to support your answer. Question 3. Provide the R command (one line of code) that you used to perform the sign test. Question 4. Provide the p-value of the sign test. Question 5. What is the decision (reject HO or do not reject HO)? Question 6. What is the correct interpretation of this test? Shop 1 | اس ادا 2