The Airline Industry Defines "No-Shows" as Passengers Who Have Purchased

question 113

Multiple Choice

The airline industry defines "no-shows" as passengers who have purchased a ticket but fail to arrive at the gate on time for departure.United Airlines operates many flights from Philadelphia to Dallas.The table below represents the observed number of no-shows that occurred on a random sample of 120 flights between Philadelphia and Dallas this year,and experienced the no-show proportions last year. United Airlines would like to know if the proportions of no-shows has changed between last year and this year on flights between these two cities using α = 0.05.The critical value for this hypothesis is ______.

• A) 5.991
• B) 7.815
• C) 9.448
• D) 11.070

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Definitions:

Dairy Products

Food products made from milk, such as cheese, butter, yoghurt, and ice cream.

Calcium

A mineral essential for bone health and the proper function of the heart, muscles, and nerves.

Red Blood Cells

Cells in the blood responsible for carrying oxygen from the lungs to the body's tissues and returning carbon dioxide from the tissues back to the lungs.

Iron

A metallic element essential for human health, used in the body to make hemoglobin for oxygen transport in the blood.