Acrater shaped like a cone has a height of 24 yd and a diameter of 72 yd.
what is the vo...
Mathematics, 08.10.2019 13:30 jetblackcap
Acrater shaped like a cone has a height of 24 yd and a diameter of 72 yd.
what is the volume of the crater?
use 3.14 to approximate pi and express your final answer in hundredths.
yd3
Answers: 1
Mathematics, 21.06.2019 20:50
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
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