An airport official wants to prove that the proportion of delayed flights for Ai

Question

An airport official wants to prove that the proportion of delayed flights for Airline A (denoted as p1) is less than the proportion of delayed flights for Airline B (denoted as p2). Random samples for both airlines after a storm showed that 51 out of 200 flights for Airline A were delayed, while 60 out of 200 of Airline B's flights were delayed. What are the appropriate Null and Alternative Hypotheses for this problem?

A. Ho: p1 - p2 = 0 and Ha: p1 - p2 > 0

B. Ho: p1 - p2 = 0 and Ha: p1 - p2 < 0

C. Ho: p1 - p2 NE 0 and Ha: p1 - p2 = 0 Incorrect

Explanation / Answer

Null and Alternative Hypotheses for this problem are

B. Ho: p1 - p2 = 0 and Ha: p1 - p2 < 0

Given :

An airport official wants to prove that the proportion of delayed flights for Airline A (denoted as p1) is less than the proportion of delayed flights for Airline B (denoted as p2).

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