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Use Computer Software to Find the Regression Equation A) CO=1.3+5.5TAR1.3NIC \mathrm{CO}=1.3+5.5 \mathrm{TAR}-1.3 \mathrm{NIC}

Question 103

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.  CO  TAR  NICOTINE 151.216151.216171.01660.8910.1180.88100.810171.016151.215110.79181.418161.015100.8970.55181.116\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) CO=1.3+5.5TAR1.3NIC \mathrm{CO}=1.3+5.5 \mathrm{TAR}-1.3 \mathrm{NIC} ;
Yes, because the adjusted R2 R^{2} is high
B) CO=1.37+5.50TAR1.38NIC \mathrm{CO}=1.37+5.50 \mathrm{TAR}-1.38 \mathrm{NIC} ;
Yes, because the P \mathrm{P} -value is high
C) CO=1.25+1.55TAR5.79NIC \mathrm{CO}=1.25+1.55 \mathrm{TAR}-5.79 \mathrm{NIC} ;
Yes, because the P \mathrm{P} -value is too low
D) CO=1.375.53TAR+1.33NIC \mathrm{CO}=1.37-5.53 \mathrm{TAR}+1.33 \mathrm{NIC} ;
Yes, because the R2 R^{2} is high

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