Topic Regression Analysis QUESTION 9 One way of choosing the proper value for k

Question

Topic Regression Analysis

QUESTION 9

One way of choosing the proper value for k in ridge regression is to use the ridge trace.

True

False

4 points   

QUESTION 10

If the p-term regression model has negligible bias, the expected value of Mallows’ Cp statistic is p.

True

False

4 points   

QUESTION 11

A leverage point is a data point that

has an unusual response

has a zero residual

is remote in x-space

is not normally distributed

4 points   

QUESTION 12

A point with a large Cook’s distance

is usually near the center of the data in x-space

has influence on the estimated regression coefficients

has a zero residual

all of the above

4 points   

QUESTION 13

In the forward selection procedure, a simpler model is usually created by

increasing F-to-enter

decreasing F-to-enter

increasing

none of the above

has an unusual response

has a zero residual

is remote in x-space

is not normally distributed

Explanation / Answer

QUESTION 9) True

QUESTION 10) True

QUESTION 11) is remote in x-space

QUESTION 12) has influence on the estimated regression coefficients

QUESTION 13) increasing F-to-enter

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