Mathematics, 24.05.2021 15:20 brooke0713
Find the range and the first and third quartiles for the data set. 30, 89, 19, 28, 71, 67, 75
Answers: 3
Mathematics, 21.06.2019 16:30, wolfygamer14
The angles below are supplementary. what is the value of x? a pair of supplementary angles is shown. one angle measures 7x + 33, and the other angle measures 70. 5.3 8.14 11 14.7
Answers: 1
Mathematics, 21.06.2019 19:30, santileiva123199
Factor the following expression. 27y3 – 343 a. (3y + 7)(9y2 + 2ly + 49) b. (3y – 7)(9y2 + 2ly + 49) c. (3y – 7)(932 – 217 + 49) d. (3y + 7)(92 – 2ly + 49)
Answers: 1
Mathematics, 21.06.2019 20:50, brea2006
An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.
Answers: 3
Find the range and the first and third quartiles for the data set. 30, 89, 19, 28, 71, 67, 75...
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