A new observed data point is included in set of bivariate data. You find that the slope of the new regression line has changed from 1.7 to 1.1, and the correlation coefficient only changed from +.60 to +.61. This new data point is probably a (an):

influential point.

outlier.

residual.

extrapolation.

predicted (y) value.

Question

A new observed data point is included in set of bivariate data. You find that the slope of the new regression line has changed from 1.7 to 1.1, and the correlation coefficient only changed from +.60 to +.61. This new data point is probably a (an):

       influential point.

       outlier.

       residual.

       extrapolation.

       predicted (y) value.

anonymous · Answer

I ultimately choose A. @tkhunny

tkhunny · Answer

CDE - Make no sense.
AB - The only rational candidates.

Outliers will change both.

"A" is good.

anonymous · Answer

thanks!