In regression, a significant B coefficient for an X variable (say X1) tells a re

Question

In regression, a significant B coefficient for an X variable (say X1) tells a researcher

Select one:
a. The amount that X1 changes in response to the other Xs
b. The percent of the variation in Y not explained by X1
c. The amount and direction that Y changes in response to a change in X1
d. The percent of the variation in Y explained by X1

Multiple regression is an improvement over simple linear regression primarily in that it allows you to

Select one:
a. Calculate the R2
b. Test for the effects of several X variables at the same time
c. Have a useable intercept value
d. Calculate an F-statistic

Explanation / Answer

1)c. The amount and direction that Y changes in response to a change in X1

2) b. Test for the effects of several X variables at the same time

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