IBM C2090-011 Exam Practice Questions (P. 2)

There are two major types of errors one can make when attempting to draw conclusions about the larger population based on the information collected in the sample. For example, when performing an Independent Samples T-Test, one type of error that can occur is when there are significant differences between the groups based on a scale level dependent variable, but the test fails to detect them. Which of the following choices this sort of error? (Choose two.)

we have the statistics as shown in the figure below.

The reported Mean is incorrect because a value, -9999, is included in its calculation. How can this situation be fixed?

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?

If you build an expression manually, as opposed to using a function (e.g., specify (V1+V2)/2 instead of MEAN(V1,V2)), which statement is true?

In the Aggregate data procedure, if you specify more than one Break Variable, ________________ in the Break Variables list will determine case order.