TABLE 11-1 an Airline Wants to Select a Computer Software Package for Package

question 15

Multiple Choice

TABLE 11-1
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 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.) The number of passengers bumped each week is obtained, which gives rise to the following Excel output:

-Referring to Table 11-1, the within groups degrees of freedom is

• A) 3.
• B) 4.
• C) 16.
• D) 19.

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Definitions:

Variables

Attributes, characteristics, or conditions that can change or vary within or across subjects in a study.

Prediction

An educated guess about future events based on current knowledge, data, or trends.

Predictor Variables

Variables that are used in statistical models to predict or explain variations in another variable, often the dependent variable.

Criterion Variable

A dependent variable that is influenced by other variables in a study.