Exhibit 10-2 The following information was obtained from matched samples. The daily production rates for a sample of workers before and after a training program are shown below. Worker Before After 1 20 25 2 25 25 3 27 28 4 23 22 5 22 24 20 22 7 17 21 22. Refer to Exhibit 10-2, test to see if worker's scores before and after training were different with a 0.01 level of significance a. null hypothesis should be rejected b. null hypothesis should not be rejected c. alternative hypothesis should be accepted d. None of these alternatives is correct.

Q: (-14) + (–7)

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A: factors of 24 that add up to 10

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