An Airline Wants to Select a Computer Software Package for Its

question 25

Multiple Choice

An airline wants to select a computer software package for its reservation system. Four software packages (1, 2, 3, and 4) are commercially available. An experiment is set up in which each package is used to make reservations for 5 randomly selected weeks and data on the number of passengers that are bumped over a month are collected. (A total of 20 weeks was included in the experiment.) The variability of the number of passengers that are bumped is found to be roughly the same for the 4 packages. The distribution on the number of passengers that are bumped has been found out to be right-skewed for package 1 and 4, left-skewed for package 2 and normal for package 3. Which of the following tests will be the most appropriate to find out if the mean number of passengers being bumped over a month is the same across the 4 packages?

• A) Paired t test
• B) Pooled-variance t test
• C) One-way ANOVA F test for differences among more than two means
• D) Kruskal-Wallis rank test

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Definitions:

Price Change

A fluctuation in the market price of a good or service over a specific period.

Initial Endowment

The initial allocation of goods, resources, or money which an individual or entity possesses at the start of a consideration period.

Weak Axiom

A principle in consumer theory that, if a consumer chooses bundle A over bundle B when both are affordable, they will not choose B over A if A's price decreases and B's price stays the same or increases.

Revealed Preference

A theory that determines a consumer's preferences based on their purchasing behavior, under the assumption that their choices reveal their valuation of goods.