Mathematics, 14.06.2020 01:57 lainnn974
A delivery truck is transporting boxes of two sizes: large and small. The combined weight of a large box and a small box is 70 pounds. The truck is transporting 70 large boxes and 60 small boxes. If the truck is carrying a total of 4700 pounds in boxes, how much does each type of box weigh?
large box: ? pounds
Small box: ? pounds
Answers: 1
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An automobile assembly line operation has a scheduled mean completion time, Ī¼, 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.
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A delivery truck is transporting boxes of two sizes: large and small. The combined weight of a large...
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