There were 326 people at a matinee performance of a play. For the evening performance, 486
people attended. Which is the most reasonable
estimate for the total number of people that saw
the show?
A. 700
B. 800
C. 900
D. 1,000

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.

Rewrite so the subject can be y in the formula d=m-y/y+n

Maria solved an equation as shown below. what is the solution to maria’s equation?