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Mathematics, 19.12.2019 02:31 ottie123

Anew sales training program has been instituted at a rent-to-own company. prior to the training, 10 employees were tested on their knowledge of products offered by the company. once the training was completed, the employees were tested again in an effort to determine whether the training program was effective. scores are known to be normally distributed. the sample scores on the tests are listed next. use pretest score as µ1 for population 1 and posttest score as µ2 for population 2, or µd as the mean of the difference calculated as pretest score minus posttest score. col1 pretest score 66 94 87 84 76 88 col2 posttest score 75 100 93 85 75 90which of the following are the appropriate hypotheses to determine if the training increases scores?

a. h0: µ1 – µ2? 0, ha: µ1 – µ2< 0
b. h0: µ1 – µ2? 0, ha: µ1 – µ2> 0
c. h0: µd ? 0, ha: µd < 0
d. h0: µd ? 0, ha: µd > 0

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Anew sales training program has been instituted at a rent-to-own company. prior to the training, 10...
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