Multiple Choice
Use the following information for questions:
An airport official wants to prove that the p1 = proportion of delayed flights after a storm for Airline 1 was different from p2 = the proportion of delayed flights for Airline 2. Random samples from the two airlines after a storm showed that 50 out of 100 of Airline 1's flights were delayed, and 70 out of 200 of Airline 2's flights were delayed.
-What are the appropriate null and alternative hypotheses?
A) H0: p1 - p2 = 0 and Ha: p1 - p2 0
B) H0: p1 - p2 0 and Ha: p1 - p2 = 0
C) H0: p1 - p2 = 0 and Ha: p1 - p2 < 0
D) H0: p1 - p2 = 0 and Ha: p1 - p2 > 0
Correct Answer:

Verified
Correct Answer:
Verified
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