An airplane company is determining the difference in selling price if rows of first-class seats are added to a
new design. Using the average selling price of $1,000
per first-class seat, the total selling price for one new
row is
f(1) = 4,000r. Each row in first class eliminates two rows
of economy seats. Using the average selling price of
$150 per economy seat, the total price for each pair of
removed rows is e(r)= 1,800r.

Which is d(r) the profit or loss for adding r rows of first class seats?

A. D(r)=2,200r
B. D(r)=5,800r
C. D(r)=-2,200r
D. D(r)=-5,800r

HURRY TIMED

Powerful women's group has claimed that men and women differ in attitudes about sexual discrimination. a group of 50 men (group 1) and 40 women (group 2) were asked if they thought sexual discrimination is a problem in the united states. of those sampled, 11 of the men and 19 of the women did believe that sexual discrimination is a problem. if the p-value turns out to be 0.035 (which is not the real value in this data set), then at = 0.05, you should fail to reject h0. at = 0.04, you should reject h0. at = 0.03, you should reject h0. none of these would be a correct statement.