Question

A scatterplot of the weights (in pounds) against the tail lengths (in inches) of 10 wolves showed a moderately strong positive linear association.

From the data, the regression model to predict the weights ( y ^ ) of these wolves from tail lengths ( x) was  y ^ = 3 x + 40.

Interpret the slope of the regression line.

Group of answer choices

For every 1 inch increase in tail length, the predicted weight increases by 40 pounds.

For every 3 inch increase in tail length, the predicted weight increases by 1 pound.

For every 40 inch increase in tail length, the predicted weight increases by 3 pounds.

For every 1 inch increase in tail length, the predicted weight increases by 3 pounds.

Answer 1

TOPIC:Interpretation of the slope coefficient in regression analysis.