In each diagram, line m is parallel to line n, and line t intersects lines m and n. 1149n669
98°125°m
829ve
Based on the diagrams, which statement is true? (8.8D, SS, RC3)
F The value of x is 125, because the two angles shown in each diagram are congruent.
G The value of x is 55, because the two angles shown in each diagram are supplementary.
The value of x is 90, because the two angles shown in each diagram are right angles.
y The value of x is 75, because the two angles shown in each diagram are complementary,

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.