- CFA Exams
- CFA Level I Exam
- Topic 1. Quantitative Methods
- Learning Module 7. Estimation and Inference
- Subject 2. The Central Limit Theorem and Inference
CFA Practice Question
An analyst wants to determine how growth managers performed last year. He assumes that the population cross-sectional standard deviation of growth manager return is 8%; the sample size selected is 40. Determine the standard error of the sample mean. Assume the returns are independent across managers:
B. 1.265
C. 1.600
A. 1.125
B. 1.265
C. 1.600
Correct Answer: B
8/401/2 = 1.265
User Contributed Comments 3
| User | Comment |
|---|---|
| cleopatraliao | the unit is worth paying attention to |
| maryprz14 | so agree |
| gigi0818 | Why use 8 instead of 8%? |