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an Airport Official α\alpha

Question 90

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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.
-For a significance level of α\alpha = 0.05, are the results statistically significant?


A) No, the results are not statistically significant because the p-value < 0.05.
B) Yes, the results are statistically significant because the p-value < 0.05.
C) No, the results are not statistically significant because the p-value > 0.05
D) Yes, the results are statistically significant because the p-value > 0.05.

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