Question

3 numeric 1 point assuming that a sample (n = 625) has a sample standard deviation of 2.25, what is the estimated standard error? answer

Explanation:

Step1: Recall the formula for standard error

The formula for the standard error \(SE=\frac{s}{\sqrt{N}}\), where \(s\) is the sample standard deviation and \(N\) is the sample size.

Step2: Substitute the given values

Given \(s = 2.25\) and \(N=625\). First, find \(\sqrt{N}=\sqrt{625}=25\). Then, \(SE=\frac{2.25}{25}\).

Step3: Calculate the value

\(SE=\frac{2.25}{25}=0.09\)

Answer:

\(0.09\)