A 90% Confidence Interval for the Mean Percentage of Airline

question 120

Multiple Choice

A 90% confidence interval for the mean percentage of airline reservations being canceled on the day of the flight is (1.5%, 4.2%) . What is the point estimator of the mean percentage of reservations
That are canceled on the day of the flight?

• A)2.85%
• B)1.35%
• C)2.7%
• D)2.10%

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