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Mathematics, 21.06.2019 23:30
Select the correct answer from each drop-down menu. james needs to clock a minimum of 9 hours per day at work. the data set records his daily work hours, which vary between 9 hours and 12 hours, for a certain number of days. {9, 9.5, 10, 10.5, 10.5, 11, 11, 11.5, 11.5, 11.5, 12, 12}. the median number of hours james worked is . the skew of the distribution is
Answers: 3
Mathematics, 22.06.2019 02:40
Jenny made a scale drawing of a city. the scale she used was 5 inches = 1 yard. what is the scale factor of the drawing?
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Mathematics, 22.06.2019 03:30
Atechnician compares repair costs for two types of microwave ovens (type i and type ii). he believes that the repair cost for type i ovens is greater than the repair cost for type ii ovens. a sample of 6767 type i ovens has a mean repair cost of $79.79$โข79.79. the population standard deviation for the repair of type i ovens is known to be $19.18$โข19.18. a sample of 5555 type ii ovens has a mean repair cost of $75.24$โข75.24. the population standard deviation for the repair of type ii ovens is known to be $21.40$โข21.40. conduct a hypothesis test of the technician's claim at the 0.050.05 level of significance. let ฮผ1ฮผ1 be the true mean repair cost for type i ovens and ฮผ2ฮผ2 be the true mean repair cost for type ii ovens. step 2 of 4 : compute the value of the test statistic. round your answer to two decimal places.
Answers: 2
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