11. the diagram shows
diagram shows abc, its medians, centroid p, and the lengths of some of the
subsegments as expressions of variables x and y. apply the centroid theorem to solve for the variables and to find other lengths.

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In the diagram below? p is circumscribed about quadrilateral abcd. what is the value of x

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.