The slope (b1 ) represents
A) the predicted value of Y.
B) predicted value of Y when X = 0.
C) variation around the line of regression.
D) the estimated average change in Y per unit change in X.
Q. 2The Y-intercept (b0 ) represents the
A) variation around the sample regression line.
B) predicted value of Y.
C) estimated average Y when X = 0.
D) change in estimated average Y per unit change in X.
Q. 3The Y-intercept (b0 ) represents the
A) variation around the sample regression line. B) change in estimated Y per unit change in X.
C) predicted value of Y when X = 0. D) predicted value of Y.
Q. 4True or False: In a one-factor ANOVA analysis, the among sum of squares and within sum of squares must add up to the total sum of squares.
Indicate whether the statement is true or false
Q. 5True or False: The MSE must always be positive.
Indicate whether the statement is true or false
Q. 6True or False: If you are comparing the mean sales among 3 different brands, you are dealing with a three-way ANOVA design.
Indicate whether the statement is true or false
Q. 7True or False: When the F test is used for ANOVA, the rejection region is always in the right tail.
Indicate whether the statement is true or false
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