Answer:
Standard error of mean = 0.4472 ≈ 0.45
Step-by-step explanation:
Data provided in the question:
Number of randomly selected candidates, n = 5
Standard deviation of the data, σ = 1
Now,
Standard error of mean is calculated using the formula as
⇒ Standard error of mean = [tex]\frac{\textup{Standard deviation}}{\sqrt{n}}[/tex]
on substituting the respective values, we get
⇒ Standard error of mean = [tex]\frac{\textup{1}}{\sqrt{5}}[/tex]
or
⇒ Standard error of mean = [tex]\frac{\textup{1}}{\sqrt{5}}[/tex]
or
⇒ Standard error of mean = [tex]\frac{\textup{1}}{2.236}[/tex]
or
⇒ Standard error of mean = 0.4472 ≈ 0.45
