IBM IBM Certifications C2090-011 Questions & Answers

• Question 1:

  If you use the IBM SPSS Statistics Select Cases dialog to conduct analysis on a subset of cases and you want to keep all cases in the same dataset, which option is appropriate?

  A. Copy unselected cases to a new dataset

  B. Copy selected cases to a new dataset

  C. Filter out unselected cases

  D. Delete unselected cases

  Correct Answer: C

• Question 2:

  As the sample size increases, the amount of variabilit9 in the distribution of sample means increases.

  A. True

  B. False

  Correct Answer: B

• Question 3:

  In order to access the New Custom Attribute feature in the Data Editor, the Data Editor must be viewed from the:

  A. Value Labels button.

  B. Dialog Recall button.

  C. Variable View tab.

  D. Data View tab.

  Correct Answer: C

• Question 4:

  Which of following variable name is correctly formed for use in an IBM SPSS Statistics data file?

  A. 3job_categories

  B. Employee safety

  C. Respondents' age

  D. job_3_categories

  Correct Answer: B

• Question 5:

  If you request an aggregated dataset or data file in the Aggregate procedure, the number of cases in the new aggregated file is equal to what?

  A. Number of cases in the original data file

  B. Number of aggregated summary variables

  C. Numberof cases that you specified in the Aggregate Data dialog box

  D. Number of categories of the variables specified in the Break Variables list

  Correct Answer: D

• Question 6:

  Which chart type is appropriate for viewing the association between two scale variables?

  A. Bar chart

  B. Area chart

  C. Pie chart

  D. Scatter plot

  Correct Answer: D

• Question 7:

  The reason you would select the check box next to “indicate case source variable” in the Add Cases dialog box is to:

  A. Create a new case in your merged data.

  B. Highlight a specific case in one of your variables.

  C. Create a variable identifying the case data source.

  D. Create a variable identifying the variable data source.

  Correct Answer: C

• Question 8:

  You have been asked to create a categorical variable from a scale variable, income, illustrated in the histogram below. The resulting categorical variable must have 5 categories with an approximately equal number of cases in each category. Which way would you accomplish this using the IBM SPSS Statistics Visual Binning dialog?

  

  A. Use the automatic option Equal Width Intervals

  B. Use the automatic option Equal Percentiles Based on Scanned Cases

  C. Use the automatic option Outpoints at Mean and Selected Standard Deviations Based on Scanned Cases

  D. Specify Cut points manually at 10000, 20000, 30000, 40000 and 50000.

  Correct Answer: B

• Question 9:

  As the sample size increases, the amount of variabilit9 in the distribution of sample means increases.

  A. True

  B. False

  Correct Answer: B

• Question 10:

  Which interpretation is correct for the IndependentSamples T-Test table shown below?

  

  A. We did not meet the assumption of homogeneity of variance; however our two groups differed on the number of WWW HOURS PER WEEK.

  B. We did meet the assumption of homogeneity of variance and our two groups differedon the number of WWW HOURS PER WEEK.

  C. We did not meet the assumption of homogeneity of variance and our two groups did not differ on the number of WWW HOURS PER WEEK. We did meet the assumption of homogeneity of variance; however our two groups did not differ on the number of WWW HOURS PER WEEK.

  Correct Answer: A