Refer to the exhibit.

Given alpha=0.02, which conclusion is justified regarding percentage of body fat, comparing small (S), medium (M), and large (L) wrist sizes?

1. A. Medium wrist size is significantly different than small wrist size.
2. B. Large wrist size is significantly different than medium wrist size.
3. C. Large wrist size is significantly different than small wrist size.
4. D. There is no significant difference due to wrist size.

Correct Answer: C

Which SAS program will divide the original data set into 60% training and 40% validation
data sets, stratified by county?

1. A. Option A
2. B. Option B
3. C. Option C
4. D. Option D

Correct Answer: C

Refer to the REG procedure output:

The Intercept estimate is interpreted as:

1. A. The predicted value of the response when all the predictors are at their current values.
2. B. The predicted value of the response when all predictors are at their means.
3. C. The predicted value of the response when all predictors = 0.
4. D. The predicted value of the response when all predictors are at their minimum values.

Correct Answer: C

One common approach for predicting rare events in the LOGISTIC procedure is to build a model that disproportionately over-re presents those cases with an event occurring (e.g. a 50-50 event/non-event split).
What problem does this present?

1. A. All parameter estimates are biased.
2. B. Only the intercept estimate is biased.
3. C. Only the non-intercept parameter estimates are biased.
4. D. Sensitivity estimates are biased.

Correct Answer: B

Given the following LOGISTIC procedure:

What is the difference between the datasets OUTFILEJ and OUTFILE_2?

1. A. OUTFILE_1 contains the final parameter estimates while OUTFILE_2 contains the newly scored probabilities.
2. B. OUTFILE_1 contains the model goodness of fit statistics while OUTFILE_2 contains the newly scored probabilities
3. C. OUTFILE_1 contains the model goodness of fit statistics while OUTFILE_2 contains the newly scored logits.
4. D. OUTFILEJ contains the final parameter estimates and Wald Chi-Square values while OUTFILE_2 contains the newly scored probabilities.

Correct Answer: A