The answer for question number 18
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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.
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Mathematics, 21.06.2019 21:30
About 9% of th population is hopelessly romantic. if 2 people are randomly selected from the population, what is the probability that at least 1 person is hopelessly romantic?
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Mathematics, 21.06.2019 22:20
The four students in the table below each recorded the time and distance traveled while exercising. exercising distance (miles) time (minutes) gia 2 30 harris 5 50 ian 3 40 jackson 4 80 which list ranks the students from fastest walker to slowest walker? jackson, gia, ian, harris harris, jackson, ian, gia harris, ian, gia, jackson jackson, harris, ian, gia
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Mathematics, 15.07.2019 16:30
Mathematics, 15.07.2019 16:30
History, 15.07.2019 16:30
Mathematics, 15.07.2019 16:30
Mathematics, 15.07.2019 16:30
Health, 15.07.2019 16:30
Biology, 15.07.2019 16:30
Mathematics, 15.07.2019 16:30
Mathematics, 15.07.2019 16:30
Mathematics, 15.07.2019 16:30