Question

12 multiple choice 1 point given a standard deviation of 8.257 and a sample of 100, calculate the standard error of the mean. 0.8257 0.0826 12.1109 1.2111

Explanation:

Step1: Recall the formula

The formula for the standard error of the mean $SE=\frac{\sigma}{\sqrt{n}}$, where $\sigma$ is the standard - deviation and $n$ is the sample size.

Step2: Substitute values

Given $\sigma = 8.257$ and $n = 100$, so $\sqrt{n}=\sqrt{100}=10$. Then $SE=\frac{8.257}{10}$.

Step3: Calculate the result

$SE = 0.8257$.

Answer:

A. 0.8257