- CFA Exams
- CFA Level I Exam
- Topic 1. Quantitative Methods
- Learning Module 5. Sampling and Estimation
- Subject 1. Sampling Methods

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**CFA Practice Question**

A sample of 10 observations is drawn from a population with mean 17. The mean of the observations equals 14.3 and the sample standard deviation equals 4.8. The sampling error in mean equals ______.

B. 9.6

C. -2.7

A. 4.8

B. 9.6

C. -2.7

Correct Answer: C

"Sampling error" refers to the difference between a sample statistic and the corresponding population parameter. In this case, the sampling error equals 14.3 - 17 = -2.7.

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**User Contributed Comments**
2

User |
Comment |
---|---|

Gooner7 |
sample SD is an irrelevant details. I was told that CFAI loves dropping irrelevant details |

johntan1979 |
Just like the market... lots of information everywhere, many irrelevant. |