Class 5. Dealing with correlated X-variables.

Table of contents for Class 5

	145-149 ........ Discursive introduction.
	150-162 ........ Gross collinearity in a time series (Stocks.jmp).
	   152  ........ Scatterplot matrix.
           153  ........ Multivariate outlier plot.
           154  ........ Anova output (testing the value of the entire
                         regression).
           158  ........ Collapsing of leverage plots indicating
                         multicollinearity.
        163     ........ Recognizing and dealing with collinearity.
        165-173 ........ Spotting leveraged points in multiple
                         regression (Parcel.jmp)
	   165  ........ Log transforms of both X's and Y gives
	                 elasticity interpretations.
           169  ........ Partial F-test calculations (testing a subset
                         of the regression slopes).