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

question 44

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 test statistic for this sample is ________.

• A) 4.28
• B) 6.19
• C) 7.50
• D) 9.33

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Definitions:

Kenneth Thimann

A renowned botanist and biochemist, best known for his work in plant physiology, particularly in the discovery of auxins, a class of plant growth hormones.

Frits Went

A pioneering scientist in botany renowned for his groundbreaking research on the role of plant hormones in growth and development.

Indoleacetic Acid

A natural auxin, which is a class of plant hormones important for various aspects of growth and development, including cell enlargement, division, and differentiation.

Auxin

A class of plant hormones that play a key role in coordinating growth and behavioral processes in the plant's life cycle, such as cell elongation.