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1.An airline claims that72%of all its flights to a certain region arrive on time. In a randomsampleof30recent arrivals,19were on time. You may assume that thenormal

1.An airline claims that72%of all its flights to a certain region arrive on time. In a randomsampleof30recent arrivals,19were on time. You may assume that thenormal distribution applies.

A. Compute thesampleproportion.

B. Assuming the airline's claim is true, find the probability of aSample of size30producing asample proportion so low as was observed in this

sample.

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