Quiz 10 - Quiz10 Question1of6 1.0 1.0 Points Do less...

Quiz 10
Question 1 of 6
1.0/ 1.0 Points
Do less Republicans (group A) then Democrats (group B) favor the government investing billions of dollars
to improve the country's train system? One thousand Republicans and one thousand Democrats were asked
if they favored spending billions to improve the country's train system. How would we write the alternative
hypothesis?
A.Ha: pA - pB does not
equal 0
B.Ha: pA - pB < 0
C.Ha: pA - pB = 0
D.Ha: pA - pB > 0
Part 2 of 6 - 1.0/ 1.0 Points
Question 2 of 6
1.0/ 1.0 Points
A major grocery store chain is trying to cut down on waste. Currently, they get peaches from two different
distributors, WholeFruits and GreenGrocer. Out of a two large shipments, the manager randomly selects
items from both suppliers and counts the number of items that are not sell-able due to bruising, disease or
other problems. She then makes a confidence interval. Is there a significant difference in the quality of the
peaches between the two distributors?
95% CI for pW-pG:(-0.156, 0.064)