An Airline Wants to Select a Computer Software Package for Its

question 120

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.The airline will choose the package that
Bumps as few passengers, on the average, as possible during a month.An experiment is set up in
Which each package is used to make reservations for 5 randomly selected weeks.(A total of 20
Weeks was included in the experiment.) Which of the following tests will be the most
Appropriate?

• A) Paired t test.
• B) Wilcoxon rank sum test.
• C) Kruskal-Wallis rank Test.
• D) Tukey-Kramer multiple comparisons procedure for one-way ANOVA.

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Definitions:

Scatter Diagram

A graphical representation of data points on a Cartesian coordinate system, used to observe the relationship between two variables.

Estimated Regression Equation

An equation derived from regression analysis that estimates the relationship between variables.

Independent Variable

A variable presumed to influence or determine the dependent variable in an experiment or study.

Coefficient of Determination

A statistical measure that determines the proportion of variance in the dependent variable that can be predicted from the independent variable(s).