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Mathematics, 15.04.2021 18:30 amontes189gmialcom
Which two figures fall under the trapezoid on the quadrilateral hierarchy?
rhombus and isosceles trapezoid
rhombus and kite
none of the above
square and rectangle
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Answers: 2
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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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Which two figures fall under the trapezoid on the quadrilateral hierarchy?
rhombus and isosceles tr...
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