The mean annual tuition and fees for a sample of 12 private colleges was with a standard deviation of . You wish to test whether the mean tuition and fees for the population of all private colleges is greater than . Calculate the test statistic value and give its P-value for this test. Assume the population is normally distributed.

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent.the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244