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

question 22

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 total degrees of freedom is

• A) 3.
• B) 4.
• C) 16.
• D) 19.

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Definitions:

Multiple Regression Model

A statistical technique that analyzes the relationship between two or more predictor variables and a single response variable.

Dependent Variable

A variable in an experiment or model that is affected by changes in other variables, often examined to observe the effect of a manipulation.

Coefficient Of Determination

A statistical measure represented by R² that assesses the extent of variance for a dependent variable that's predictable from the independent variable(s).

Total SS

Total sum of squares in statistics, representing the total variation in the dataset, which can be partitioned into explained and unexplained components.