Mathematics, 01.02.2022 17:00 starl0rd211
For his science project, Spencer needs to photocopy his 21-page presentation. There are 37 students in his class, and he will need copies from each person, including his
teacher. Each photocopy is $0.12.
A) 77.70
B) 93.24
C) 95.76
D) 00.32
Answers: 3
Mathematics, 21.06.2019 20:50, brea2006
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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