NO.1 A company has branch offices in eight regions. Customers within each
region are classified as
either "High Value" or "Medium Value" and are coded
using the variable name VALUE. In the last
year, the total amount of
purchases per customer is used as the response variable.
Suppose there is a
significant interaction between REGION and VALUE. What can you conclude?
A.
More high value customers are found in some regions than others.
B. The
difference between average purchases for medium and high value customers depends
on
the region.
C. Regions with higher average purchases have more high
value customers.
D. Regions with higher average purchases have more medium
value customers.
Answer: B
SASInstitute試験解答 A00-240
vce A00-240トレーニング A00-240試験過去問
NO.2
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.
Sensitivity
C. Specificity
D. Positive predictive value
Answer:
B
SASInstitute保証 A00-240 A00-240
NO.3 What is the default
method in the LOGISTIC procedure to handle observations with
missing
data?
A. Missing values are imputed.
B. Parameters are
estimated accounting for the missing values.
C. Parameter estimates are made
on all available data.
D. Only cases with variables that are fully populated
are used.
Answer: D
SASInstitute返金 A00-240口コミ A00-240口コミ A00-240一発合格
NO.4 A
linear model has the following characteristics:
*A dependent variable
(y)
*One continuous variable (xl), including a quadratic term (x12)
*One
categorical (d with 3 levels) predictor variable and an interaction term (d by
x1)
How many parameters, including the intercept, are associated with this
model?
Enter your numeric answer in the space below. Do not add leading or
trailing spaces to your
answer.
Answer: 7
NO.5 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
B. 0.5663
C.
-3.7727
D. -1.0415
Answer: D
SASInstitute A00-240 A00-240最新な問題集 A00-240 A00-240模擬
NO.6
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
SASInstitute最新試験 A00-240勉強方法 A00-240対象者 A00-240バージョン
NO.7
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:
A,C
SASInstitute A00-240再テスト A00-240アクセスリスト A00-240コマンド A00-240クラムメディア
NO.8
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
SASInstitute A00-240目的 A00-240 A00-240認証試験
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試験番号：A00-240
過去問題試験科目：「SAS Certified Statistical Business Analyst Using SAS 9: Regression and Modeling Credential」
最近更新時間：2015-11-08
問題と解答：65
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