- CFA Exams
- CFA Exam: Level I 2021
- Study Session 3. Quantitative Methods (2)
- Reading 11. Hypothesis Testing
- Subject 8. Hypothesis Tests Concerning the Mean: T-Test vs. Z-Test
CFA Practice Question
A z-test is sometimes used instead of a t-test when ______
B. the test concerns a mean and sample size is large.
C. the test concerns the standard deviation and the sample size is unknown.
A. the test concerns a parameter not based on specific distributional assumptions.
B. the test concerns a mean and sample size is large.
C. the test concerns the standard deviation and the sample size is unknown.
Correct Answer: B
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