Chapter 14, Problem 30SGA

To determine

To find the standard error of the mean for each sample.

Answer to Problem 30SGA

  $0.45$

Explanation of Solution

Given:

  $\sigma =4.9,N=120$ .

Calculation:

Using the below formula to calculate the standard error of the mean for the given sample-

  $\begin{array}{l}{\sigma }_{\overline{X}}=\frac{\sigma }{\sqrt{N}}\\ {\sigma }_{\overline{X}}=\frac{4.9}{\sqrt{120}}\\ {\sigma }_{\overline{X}}\approx 0.45\end{array}$