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16 July, 09:46

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

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  1. 16 July, 10:43
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    Answer: C. Significant at 0.036

    Step-by-step explanation:

    Given:

    Number of selected samples Ns = 500

    Number of airplane that arrive on time Na = 482.

    Number of airplane that arrive late Nl = 500 - 482 = 18

    The probability that an airplane arrive late:

    P (L) = Nl/Ns

    P (L) = 18/500

    P (L) = 0.036

    Interpret an event as significant if its probability is less than or equal to 0.05.

    Since P (L) < 0.05

    P (L) = Significant at 0.036
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