CFA Practice Question

There are 434 practice questions for this study session.

CFA Practice Question

Consider the following statements about t- and z-tests:

I. The degrees of freedom in a t-distribution depend on sample size, and generally the degrees of freedom are defined as n-1.
II. As sample size increases, a t-graph begins to resemble a z-graph.
III. For infinity degrees of freedom, the critical values for a z-distribution can also be found on a t-table in the row that has infinity as its degrees of freedom.

Which statement(s) is (are) TRUE?
A. I and II
B. I and III
C. I, II and III

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