Unoccupied Seats on Flights Cause Airlines to Lose Revenue $[ 4.86 \quad 18.34 ]$

question 46

Multiple Choice

Unoccupied seats on flights cause airlines to lose revenue.Suppose a large airline wants to estimate its average number of unoccupied seats per flight over the past year.225 flight records are randomly selected and the number of unoccupied seats is noted,with a sample mean of 11.6 seats and a standard deviation of 4.1 seats.Calculate a 90 percent confidence interval for ?,the mean number of unoccupied seats per flight during the past year.

• A) \([ 4.86 \quad 18.34 ]\)
• B) \([ 11.25 \quad 11.95 ]\)
• C) \([ 11.57 \quad 11.63 ]\)
• D) \([ 11.15 \quad 12.05 ]\)
• E) \([ 11.30 \quad 12.20 ]\)

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Definitions:

Hypotension

A medical condition wherein there is an abnormally low blood pressure, leading to symptoms like dizziness or fainting.

Infusion

The process of delivering medication or fluids through a vein, typically using an IV.

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The act of recording and preserving information or data for future reference, compliance, or legal purposes, especially relevant in healthcare and professional fields.