A 90% confidence interval for the mean percentage of airline reservations being canceled on the day of the flight is (1.1%, 3.4% ). what is the point estimator of the mean percentage of reservations that are canceled on the day of the flight?
1 answer:
The point estimate would be 2.25%. Confidence intervals are centered around a point estimate; that is, the point estimate is in the very middle of the confidence interval. We can find the point estimate by averaging both ends of the confidence interval together: (1.1+3.4)/2 = 2.25.
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