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11 Nov 2021

Given information

As per given question ,

  • Number of Flights selected is   
  • Sample mean is    seats
  • Sample standard deviation is   seats.

Step-by-step explanation

Step 1.

The number of unoccupied seats over the past years on a single flight is  .

Mean number of unoccupied seats used to estimate the population mean from a sample of 225 flights is .

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Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208

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