There is concern about the percent of on-time flights. a, Ask an Expert

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There is concern about the percent of on-time flights. A recent survey of two major airlines yielded the following results. At α = 0.05 test the claim that there is a difference in proportions of on-time flights.

Blue Airline Red Airline
No. of flights 300 250
No. of on-time flights 213 200

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