Unoccupied Seats on Flights Cause Airlines to Lose Revenue

question 81

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.How many flights should we select if we wish to estimate μ to within 2 seats and be 95 percent confident?

• A) 130
• B) 65
• C) 33
• D) 17
• E) 12

---

Definitions:

Maslow's Hierarchy

A theory in psychology proposed by Abraham Maslow that presents a hierarchy of human needs, from basic physiological needs to self-actualization.

Plutchik's Scheme

A psychoevolutionary theory of emotion, proposing eight primary bipolar emotions and their combinations, interactions, and variations.

Primary Drive

Basic, innate urges such as hunger and thirst that motivate behavior to satisfy physiological needs.

Hunger

A natural physical condition that signals the body's need for food.