CFA Practice Question

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CFA Practice Question

The standard deviation, σ(x-bar1 - x-bar2), of the sampling distribution is also referred to as the ______.

A. mean
B. variance
C. standard error
Correct Answer: C

User Contributed Comments 3

User Comment
robkaz I thought standard error was sigma divided by square root of n?
sally The standard error of a statistic is the standard deviation of the sampling distribution of that statistic. In this case, the statistic is x-bar1 - x-bar2.
What you refered to, robkaz, is the standard error of the mean.
sgossett86 im so mad i want to cry
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