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Airplane passengers resulted in better ontime preformace

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Has the recent drop in airplane passengers resulted in better ontime preformace? Before the recent downturn, one airline bragged that 92% of its flights were on time. A random sample of 165 flights completed this year reveals that 153 were on time. Can we conclude at the 5% significance level that the airline's on-time performance has improved?

Reference no: EM131998897

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