SASInstitute A00-240 問題集

質問 1：
A marketing campaign will send brochures describing an expensive product to a set of customers. The cost for mailing and production per customer is $50. The company makes $500 revenue for each sale.
What is the profit matrix for a typical person in the population?

A. Option A
B. Option C
C. Option D
D. Option B
正解：B

質問 2：
Refer to the exhibit.

Based on the control plot, which conclusion is justified regarding the means of the response?
A. All groups are significantly different from each other.
B. No groups are significantly different from each other.
C. Only XL and 2XL are not significantly different from each other.
D. 2XL is significantly different from all other groups.
正解：C

質問 3：
Consider scoring new observations in the SCORE procedure versus the SCORE statement in the LOGISTIC procedure.
Which statement is true?
A. The SCORE statement in the LOGISTIC procedure returns only predicted logits, whereas the SCORE procedure returns only predicted probabilities.
B. The SCORE procedure and the SCORE statement in the LOGISTIC procedure produce the same output.
C. Unlike the SCORE procedure, the SCORE statement in the LOGISTIC procedure produces both predicted probabilities and predicted logits.
D. The SCORE statement in the LOGISTIC procedure returns only predicted probabilities, whereas the SCORE procedure returns only predicted logits.
正解：D

質問 4：
Which SAS program will best identify influential observations in a multiple regression application?

A. Option A
B. Option C
C. Option D
D. Option B
正解：B

質問 5：
Which SAS program will divide the original data set into 60% training and 40% validation data sets, stratified by county?

A. Option A
B. Option C
C. Option D
D. Option B
正解：B

質問 6：
A confusion matrix is created for data that were oversampled due to a rare target.
What values are not affected by this oversampling?
A. Sensitivity and Specificity
B. Specificity and PV-
C. Sensitivity and PV+
D. PV+ and PV-
正解：A

質問 7：
Screening for non-linearity in binary logistic regression can be achieved by visualizing:
A. A box plot of the odds ratio values versus a predictor variable.
B. A scatter plot of binary response versus a predictor variable.
C. A trend plot of empirical logit versus a predictor variable.
D. A logistic regression plot of predicted probability values versus a predictor variable.
正解：C

質問 8：
Customers were surveyed to assess their intent to purchase a product. An analyst divided the customers into groups defined by the company's pre-assigned market segments and tested for difference in the customers' average intent to purchase. The following is the output from the GLM procedure:

What percentage of customers' intent to purchase is explained by market segment?
Click the calculator button to display a calculator if needed.
A. <0.01%
B. 76%
C. 35%
D. 65%
正解：B

質問 9：
Given the following LOGISTIC procedure:

What is the difference between the datasets OUTFILEJ and OUTFILE_2?
A. OUTFILE_1 contains the model goodness of fit statistics while OUTFILE_2 contains the newly scored probabilities
B. OUTFILE_1 contains the model goodness of fit statistics while OUTFILE_2 contains the newly scored logits.
C. OUTFILEJ contains the final parameter estimates and Wald Chi-Square values while OUTFILE_2 contains the newly scored probabilities.
D. OUTFILE_1 contains the final parameter estimates while OUTFILE_2 contains the newly scored probabilities.
正解：D