Use computer software to obtain the regression and identify R 2 , adjusted R 2 , and the P-value
-A wildlife analyst gathered the data in the table to develop an equation to predict the weights of bears. He used WEIGHT as the dependent variable and CHEST, LENGTH, and SEX as the independent variables. For SEX, he used male=1 and female=2. $\begin{array}{cccc}
\hline\text { WEIGHT } & \text { CHEST } & \text { LENGTH } & \text { SEX } \
\hline 344 & 45.0 & 67.5 & 1 \
416 & 54.0 & 72.0 & 1 \
220 & 41.0 & 70.0 & 2 \
360 & 49.0 & 68.5 & 1 \
332 & 44.0 & 73.0 & 1 \
140 & 32.0 & 63.0 & 2 \
436 & 48.0 & 72.0 & 1 \
132 & 33.0 & 61.0 & 2 \
356 & 48.0 & 64.0 & 2 \
150 & 35.0 & 59.0 & 1 \
202 & 40.0 & 63.0 & 2 \
365 & 50.0 & 70.5 & 1\\hline
\end{array}$
A) $ 7725, .961, .014 $
B) $ .927, .900, .000 $
C) $ .891, .926, .003 $
D) $ .971, .723, .000 $

Question

Quizplus · Accepted Answer

The correct choice is B because it provides values that are typical outputs of regression analysis: R-squared (R²), adjusted R-squared, and the P-value. R-squared and adjusted R-squared values close to 1 indicate a good fit of the regression model to the data, and a P-value of .000 (or less than .05) suggests that the model is statistically significant.

Use Computer Software to Obtain the Regression and Identify R2

Use Computer Software to Obtain the Regression and Identify R²