Mathematics, 10.12.2019 00:31 mimigg0621
Find the values of x and y : ek= 7x+5, kg= 3x+17, hk= 3y-11, kf= y+5
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Answers: 2
Mathematics, 21.06.2019 18:30
Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3
Answers: 3
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
Find the values of x and y : ek= 7x+5, kg= 3x+17, hk= 3y-11, kf= y+5
need answer asap...
need answer asap...
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