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7 days ago

14

Assume that a study of 500 randomly selected airplane routes showed that 482 arrived on time. Select the correct interpretation

of the probability of an airplane arriving late. Interpret an event as significant if its probability is less than or equal to 0.05.
A. Significant at 0.0036
B. Not significant at 0.964
C. Significant at 0.036
D. Not significant at 0.036

1 answer:

babunello [3.6K]7 days ago

4 0

Answer: C. Significant at 0.036

Step-by-step explanation:

Given:

Total samples selected Ns= 500

Airplanes that arrived on time Na = 482.

Airplanes that arrived late Nl = 500 - 482 = 18

Calculating the probability of an airplane arriving late:

P(L) = Nl/Ns

P(L) = 18/500

P(L) = 0.036

An event is deemed significant if its probability is equal to or less than 0.05.

As P(L) < 0.05

P(L) = Significant at 0.036

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