SAS Institute A00-240 Exam Questions and Answers 2021

NEW QUESTION 1
A non-contributing predictor variable (Pr > |t| =0.658) is added to an existing multiple linear regression model.
What will be the result?

• A. An increase in R-Square
• B. A decrease in R-Square
• C. A decrease in Mean Square Error
• D. No change in R-Square

Answer: A

NEW QUESTION 2
In partitioning data for model assessment, which sampling methods are acceptable? (Choose two.)

• A. Simple random sampling without replacement
• B. Simple random sampling with replacement
• C. Stratified random sampling without replacement
• D. Sequential random sampling with replacement

Answer: AC

NEW QUESTION 3
Refer to the REG procedure output:

The Intercept estimate is interpreted as:

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

Answer: C

NEW QUESTION 4
Given the following GLM procedure output:

Which statement is correct at an alpha level of 0.05?

• A. School*Gender should be removed because it is non-significant.
• B. Gender should be removed because it is non-significant.
• C. School should be removed because it is significant.
• D. Gender should not be removed due to its involvement in the significant interaction.

Answer: D

NEW QUESTION 5
The selection criterion used in the forward selection method in the REG procedure is:

• A. Adjusted R-Square
• B. SLE
• C. Mallows' Cp
• D. AIC

Answer: B

NEW QUESTION 6
Given the following SAS data set TEST:

Which SAS program is NOT a correct way to create dummy variables?

• A. Option A
• B. Option B
• C. Option C
• D. Option D

Answer: D

NEW QUESTION 7
Refer to the REG procedure output:

Click on the calculator button to display a calculator if needed.

• A. 0.4115
• B. 0.6994
• C. 0.5884
• D. 0.1372

Answer: A

NEW QUESTION 8
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. 2XL is significantly different from all other groups.
• C. Only XL and 2XL are not significantly different from each other.
• D. No groups are significantly different from each other.

Answer: C

NEW QUESTION 9
Refer to the exhibit:

The plots represent two models, A and B, being fit to the same two data sets, training and validation.
Model A is 90.5% accurate at distinguishing blue from red on the training data and 75.5% accurate at doing the same on validation data. Model B is 83% accurate at distinguishing blue from red on the training data and 78.3% accurate at doing the same on the validation data.
Which of the two models should be selected and why?

• A. Model
• B. It is more complex with a higher accuracy than model B on training data.
• C. Model
• D. It performs better on the boundary for the training data.
• E. Model
• F. It is more complex with a higher accuracy than model A on validation data.
• G. Model
• H. It is simpler with a higher accuracy than model A on validation data.

Answer: D

NEW QUESTION 10
The following LOGISTIC procedure output analyzes the relationship between a binary response and an ordinal predictor variable, wrist_size Using reference cell coding, the analyst selects Large (L) as the reference level.

What is the estimated logit for a person with large wrist size? Click the calculator button to display a calculator if needed. A. 0.0819

• A. 0.5663
• B. -3.7727
• C. -1.0415

Answer:

NEW QUESTION 11
Select the equivalent LOGISTIC procedure model statements. (Choose two.)

• A. Mode1 Purchase * Gender Age Region;
• B. Mode1 Purchase * Gender | Age | Region;
• C. Mode1 Purchase * Gender|Age|Region @1;
• D. Mode1 Purchase * Gender|Age|Region @2;

Answer: AC

NEW QUESTION 12
This question will ask you to provide a missing option.
Complete the following syntax to test the homogeneity of variance assumption in the GLM procedure:
Means Region / <insert option here> =levene;

• A. test
• B. adjust
• C. var
• D. hovtest

Answer: D

NEW QUESTION 13
There are missing values in the input variables for a regression application.
Which SAS procedure provides a viable solution?

• A. GLM
• B. VARCLUS
• C. STDI2E
• D. CLUSTER

Answer: C

NEW QUESTION 14
The question will ask you to provide a missing statement. Given the following SAS program:

Which SAS statement will complete the program to correctly score the data set NEW_DATA?

• A. Scoredata data=MYDIR.NEW_DATA out=scores;
• B. Scoredata data=MYDIR.NEW_DATA output=scores;
• C. Scoredata=HYDIR.NEU_DATA output=scores;
• D. Scoredata=MYDIR,NEW DATA out=scores;

Answer: D

NEW QUESTION 15
Refer to the exhibit:

The box plot was used to analyze daily sales data following three different ad campaigns. The business analyst concludes that one of the assumptions of ANOVA was violated.
Which assumption has been violated and why?

• A. Normality, because Prob > F < .0001.
• B. Normality, because the interquartile ranges are different in different ad campaigns.
• C. Constant variance, because Prob > F < .0001.
• D. Constant variance, because the interquartile ranges are different in different ad campaigns.

Answer: D

NEW QUESTION 16
The total modeling data has been split into training, validation, and test data. What is the best data to use for model assessment?

• A. Training data
• B. Total data
• C. Test data
• D. Validation data

Answer: D

NEW QUESTION 17
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. 35%
• C. 65%
• D. 76%

Answer: D