Explain the Role of Margin of Error in Constructing a Confidence

question 101

Multiple Choice

Explain the Role of Margin of Error in Constructing a Confidence Interval
-A 90% confidence interval for the mean percentage of airline reservations being canceled on the day of the flight is (1.2%, 4.5%) . What is the point estimator of the mean percentage of reservations that are canceled on the day of the flight

• A) 2.85%
• B) 1.65%
• C) 2.25%
• D) 3.3%