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NO.1 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. Constant variance, because Prob > F < .0001.
B. Normality, because Prob > F < .0001.
C. Normality, because the interquartile ranges are different in different ad campaigns.
D. Constant variance, because the interquartile ranges are different in different ad campaigns.
Answer: D
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O.2 What is the default method in the LOGISTIC procedure to handle observations with missing
data?
A. Parameter estimates are made on all available data.
B. Missing values are imputed.
C. Parameters are estimated accounting for the missing values.
D. Only cases with variables that are fully populated are used.
Answer: D
NO.3 In partitioning data for model assessment, which sampling methods are acceptable? (Choose
two.)
A. Stratified random sampling without replacement
B. Sequential random sampling with replacement
C. Simple random sampling with replacement
D. Simple random sampling without replacement
Answer: A,D
A00-240 Real Exams
NO.4 Suppose training data are oversampled in the event group to make the number of events and
nonevents
roughly equal. A logistic regression is run and the probabilities are output to a data set
NEW and given the variable name PE. A decision rule considered is, "Classify data as an event if
probability is greater than 0.5." Also the data set NEW contains a variable TG that indicates
whether there is an event (1=Event, 0= No event).
The following SAS program was used.
What does this program calculate?
A. Depth
B. Positive predictive value
C. Sensitivity
D. Specificity
Answer: C
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