Which statistic, calculated from a validation sample, can help decide which model to use for prediction of a binary target variable?
Answer : D
The question will ask you to provide a missing statement. Given the following SAS program:
Answer : D
A marketing manager attempts to determine those customers most likely to purchase additional products as the result of a nation-wide marketing campaign.
The manager possesses a historical dataset (CAMPAIGN) of a similar campaign from last year.
It has the following characteristics:
-> Target variable Respond (0, 1)
-> Continuous predictor Income
-> Categorical predictor Homeowner(Y, N)
Which SAS program performs this analysis?
Answer : A
Given the following output from the LOGISTIC procedure:
Answer : C
What is the default method in the LOGISTIC procedure to handle observations with missing data?
Answer : D
A marketing analyst assessed the effect of web page design (A, B, or C) on customers' intent to purchase an expensive product. The focus group was divided randomly into three sub-groups, each of which was asked to view one of the web pages and then give their intent to purchase on a scale from 0 to 100. The analyst also asked the customers to give their income, which was coded as: I (lowest), II (medium), or III (highest). After analyzing the data, the analyst claimed that there was significant interaction and the webpage design mainly influenced high income people.
Which graph supports the analyst's conclusion?
A.
Answer : A
Within PROC GLM, the interaction between the two categorical predictors, Income and Gender, was shown to be significant. An item store was saved from the
GLM analysis.
Which statement from PROC PLM would test the significance of Gender within each level of Income and adjust for multiple tests?
Answer : D
Refer to the exhibit.
Answer : A
The SAS data set RESULT contains the following variables:
-> Region (GrpA or GrpB)
-> Sales (dollars per year)
Which SAS programs can be used to find the p-value for comparing GrpA sales with GrpB sales? (Choose two.)
A.
Answer : AB
Refer to the exhibit.
Answer : A
Reference:
https://books.google.com.pk/books?id=fx77Pzerty8C&pg=PA279&lpg=PA279&dq=sas+statistical+analysis+plot+do+you+use+to+identify+influential
+observations&source=bl&ots=AJavSAql_g&sig=ACfU3U0jbAa6lTWvSeSJ6y5bwp4osAyigA&hl=en&sa=X&ved=2ahUKEwje34nyqajnAhXDThUIHUfUCj0Q6AEw
EXoECAoQAQ#v=onepage&q=sas%20statistical%20analysis%20plot%20do%20you%20use%20to%20identify%20influential%20observations&f=false
PROC GLMSELECT was used for building a model predicting the natural log of a baseball player's salary from certain performance and longevity statistics. The model used backward elimination using SBC as its selection criterion. The sequence of steps is summarized in the graphic shown below:
Answer : B
Refer to the exhibit:
Answer : B
The Model SS in a multiple linear regression model is equal to:
Answer : B
Reference:
http://core.ecu.edu/psyc/wuenschk/SAS/SS1234.pdf
FILL BLANK -
Refer to the REG procedure output:
Answer : 100
Which characteristic of Studentized residuals indicate potential outliers?
Answer : C