Mr. Smith, the Math teacher, looks at his class Mean this semester and determines that it is 72%. He is told that he will be receiving a student (Blake) from the class down the hall who's personal Mean this semester is 80%. What will happen to Mr. Smith's class Mean as a result of Blake joining his class? * It will go down
It will go up
It will stay the same
It is impossible to know
Other:

What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?

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.

Two florida panthers were weighed. one weighs 6x+21 pounds and the two together weigh 14x+11 pounds how much does he other panther weigh alone