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In 2014 an airline had 92% of all flights on time. After taking a random sample...

In 2014 an airline had 92% of all flights on time. After taking a random sample of 278 flights from 2015-present it was found that 259 were on time. Can we infer, at the 5% significance level, that their on-time performance has improved since 2014? Assume that the required conditions are satisfied

H0 : ______________________________

H1 : ______________________________

Conclusion: Reject H0 Accept H0

Reason for conclusion: _________________________________________________

Math   Statistics-And-Probability   
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