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Basic Question 1 of 3

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

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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Craig Baugh

Learning Outcome Statements

construct hypothesis tests and determine their statistical significance, the associated Type I and Type II errors, and power of the test given a significance level

CFA® 2024 Level I Curriculum, Volume 1, Module 8.