Answers: 2
Mathematics, 21.06.2019 20:50, brea2006
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.
Answers: 3
Mathematics, 21.06.2019 21:00, 420420blazee
The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry
Answers: 2
Mathematics, 22.06.2019 02:30, clarkster112679
Robert has 78 tomatoes and 56 cucumbers he wants to plant them in equal rows how many in each row
Answers: 1
What is the factor form of x^2-9x+14...
Mathematics, 05.10.2020 18:01
Mathematics, 05.10.2020 18:01