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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
Mathematics, 22.06.2019 02:30
Select the correct statement about the function represented by the table
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Mathematics, 22.06.2019 04:30
Write the ratio as a fraction in lowest terms 1 1/3 to 1 2/3
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Mathematics, 22.06.2019 05:30
Anya is making throw pillows and is choosing the type of filling and type of fabric pattern. complete each statement below about the pillow options.
Answers: 3
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