Apply your understanding of order of operations to question 7. Which of the following is NOT true about the 8. Raqu
expression given below?
expres
(10 + 4)2 - 25
What
corre
a. The 4 will be raised to the second power
b. Subtracting 25 will be the last step
c. The 10 and 4 will be added first
d. 14 will be raised to the second power
It

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.