Regardless of the value of x, the standard deviation of the distribution of y values about the regression line is the same. This assumption of equal standard deviations about the regression line is called:
a. random error.
b. heteroscedasticity.
c. homoscedasticity.
d. pooled variances.
e. residual analysis.
Question 2
Simple linear regression requires that the scales of measurement be expressed in either:
a. nominal or ordinal.
b. ordinal or ratio.
c. interval or ratio.
d. nominal or ratio.
e. nominal or interval.
In this 1900 cartoon, oil baron John D. Rockefeller holds the White House in the palm of his hand wh
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