Jill just made a purchase online. The store that she bought from gave her the option to pay with a check, money order, or credit card. Item will not be shipped until her payment arrives. Why would you want to use a credit card instead of a money order or check? Explain.

What is the greatest common factor of 6a, 8a^{2}, and 14?

Closing a credit card usually _your debt ratio.a. increasesb. decreasesc. improvesd. has no effect on

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.