Mathematics, 20.08.2019 00:30 AbbyR9138
On a farm there are some cows and some chickens. if the animals have a total of 40 head and 112 legs, how many cows are there?
Answers: 1
Mathematics, 21.06.2019 12:30
35 points, ! name one pair of congruent sides. a. segments pr and sv b. segments qr and st c. segments rp and ts d. segments pq and vs
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
On a farm there are some cows and some chickens. if the animals have a total of 40 head and 112 legs...
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