In the Following Regression (N = 91), Which Coefficients Differ

question 20

Multiple Choice

In the following regression (n = 91) , which coefficients differ from zero in a two-tailed test at ? = .05? $$\begin{array} { l r r r } & & { \text { Confidence Interval } } \\\hline \text { Variables } & \text { Coefficients } & \text { 95\%lower } & \text { 95\% upper } \\\hline \text { Intercept } & 9.8080 & - 23.9968 & 43.6129 \\\text { NumCyl } & - 1.6804 & - 2.8260 & - 0.5349 \\\text { HPMax } & - 0.0369 & - 0.0648 & - 0.0090 \\\text { ManTran } & 0.2868 & - 2.2604 & 2.8341 \\\text { Length } & 0.1109 & - 0.0087 & 0.2305 \\\text { Wheelbase } & - 0.0701 & - 0.4111 & 0.2709 \\\text { Width } & 0.4079 & - 0.1735 & 0.9893 \\\text { RearStRm } & - 0.0085 & - 0.4100 & 0.3931 \\\text { Weight } & - 0.0025 & - 0.0064 & 0.0014 \\\text { Domestic } & - 1.2291 & - 3.4955 & 1.0374 \\\hline\end{array}$$

• A)NumCyl, HPMax
• B)Intercept, ManTran
• C)Intercept, NumCyl, Domestic
• D)Intercept, Domestic

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