Use Computer Software to Find the Regression Equation A) $\mathrm{CO}=1.3+5.5 \mathrm{TAR}-1.3 \mathrm{NIC}$

question 55

Multiple Choice

Use computer software to find the regression equation. Can the equation be used for prediction?
-An anti-smoking group used data in the table to relate the carbon monoxide of various brands of cigarettes to their tar and nicotine content. $\begin{array}{ccc}\hline\text { CO } & \text { TAR } & \text { NICOTINE } \\\hline 15 & 1.2 & 16 \\15 & 1.2 & 16 \\17 & 1.0 & 16 \\6 & 0.8 & 9 \\1 & 0.1 & 1 \\8 & 0.8 & 8 \\10 & 0.8 & 10 \\17 & 1.0 & 16 \\15 & 1.2 & 15 \\11 & 0.7 & 9 \\18 & 1.4 & 18 \\16 & 1.0 & 15 \\10 & 0.8 & 9 \\7 & 0.5 & 5 \\18 & 1.1 & 16\\\hline\end{array}$

• A) \( \mathrm{CO}=1.3+5.5 \mathrm{TAR}-1.3 \mathrm{NIC} \);
• Yes, because the adjusted \( R^{2} \) is high
• B) \( \mathrm{CO}=1.37+5.50 \mathrm{TAR}-1.38 \mathrm{NIC} \);
• Yes, because the \( \mathrm{P} \)-value is high
• C) \( \mathrm{CO}=1.25+1.55 \mathrm{TAR}-5.79 \mathrm{NIC} \);
• Yes, because the \( \mathrm{P} \)-value is too low
• D) \( \mathrm{CO}=1.37-5.53 \mathrm{TAR}+1.33 \mathrm{NIC} \);
• Yes, because the \( R^{2} \) is high

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Definitions:

Capacity Management

Capacity management is the process of planning and controlling the resources needed to meet demand, ensuring optimal use of an organization's capacity.

Productivity

The efficiency with which resources are used to produce goods and services.

Differentiation

The process of distinguishing a product or service from others to make it more attractive to a particular target market.

Tangibility

Tangibility refers to the physical nature of a product, distinct from services or digital products, which can be seen, touched, and owned physically.