What system is occurring over this area? What type of front is affecting this area? Which weather phenomenon is the area experiencing

The heaviest 16% of all men in weight weigh more than how many pounds ?

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

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.