Author Question: If the sum of squares due to regression (SSR) is 60, which of the following must be true? a. The ... (Read 68 times)

SAVANNAHHOOPER23 · **on:** Jun 24, 2018

If the sum of squares due to regression (SSR) is 60, which of the following must be true?
a. The coefficient of correlation is 0.9.
b. The total sum of squares (SST) is at least 60.
c. The y-intercept is positive.
d. The slope, b, is positive.
e. The coefficient of determination is 0.81.

Question 2

If all the points in a scatter diagram lie on the least squares regression line, then the coefficient of correlation:
a. must be 1.0.
b. must be -1.0.
c. must be either 1.0 or -1.0.
d. must be 0.