An anger-management course claims that, after completing its seminar, participants will lose their tempers less often. Always a skeptic, you decide to test this claim. A random sample of 1212 seminar participants is chosen, and these participants are asked to record the number of times that they lost their tempers in the two weeks prior to the course. After the course is over, the same participants are asked to record the number of times that they lost their tempers in the next two weeks. The following table lists the results of the survey. Using these data, test the claim at the 0.020.02 level of significance assuming that the population distribution of the paired differences is approximately normal. Let participants before completing the anger-management course be Population 1 and let participants after completing the anger-management course be Population 2.

Before	55	88	55	55	44	1212	1212	44	33	44	99	77
After	33	33	55	44	44	88	88	44	44	44	66	33

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Step2of3:

Compute the value of the test statistic. Round your answer to three decimal places.

Step 3: conclusion