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
Answers: 1
Mathematics, 21.06.2019 17:00, averyeverdeen01
Pam buys a sleeve of ball bearings for her skateboard. each of the bearings is 1 1/5 inches wide. the sleeve is 9 3/5 inches long. how many ball bearings are in the sleeve? show your work.
Answers: 3
Mathematics, 21.06.2019 21:30, drepeter86
50 people men and women were asked if they watched at least one sport on tv. 20 of the people surveyed are women, but only 9 of them watch at least one sport on tv. 16 of the men watch at least one sport on tv. make a a two-way table and a relative frequency table to represent the data.
Answers: 3
Mathematics, 21.06.2019 22:30, kaylaamberd
Maria found the least common multiple of 6 and 15. her work is shown below. multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, . . multiples of 15: 15, 30, 45, 60, . . the least common multiple is 60. what is maria's error?
Answers: 1
Anew sales training program has been instituted at a rent-to-own company. prior to the training, 10...
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