Use Computer Software to Obtain the Multiple Regression Equation and Identify

question 11

Multiple Choice

Use computer software to obtain the multiple regression equation and identify $R ^ { 2 }$ , adjusted $R ^ { 2 }$ , and the $P$ -value. An anti-smoking group used data in the table to relate the carbon monoxide (CO) of various brands of cigarettes to their tar and nicotine (NIC) content.
$\begin{array}{ccc}\hline \text { CO } & \text { TAR } & \text { NIC } \\\hline 15 & 1.2 & 16 \\15 & 1.2 & 16 \\17 & 1.0 & 16 \\6 & 0.8 & 9 \\1 & 0.1 & 1 \\8 & 0.8 & 8 \\10 & 0.8 & 10 \\17 & 1.0 & 16 \\15 & 1.2 & 15 \\11 & 0.7 & 9 \\18 & 1.4 & 18 \\16 & 1.0 & 15 \\10 & 0.8 & 9 \\7 & 0.5 & 5 \\18 & 1.1 & 16 \\\hline\end{array}$

• A) \(0.931,0.902,0.000\)
• B) \(0.943,0.934,0.000\)
• C) \(0.861,0.900,0.015\)
• D) \(0.976,0.921,0.002\)

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Definitions:

Variability of Data Set

The degree to which the numbers in a data set differ from each other and from their average; a measure of the spread or dispersion within the given information.

Standard Deviation

A statistic that measures the dispersion or variability within a dataset, indicating how much individual data points deviate from the mean of the data.

External Validity

The extent to which the results of a study can be generalized or applied to situations outside the original experimental setting.

Representative

Someone or something that serves as a typical example or is characteristic of a group, class, or set.