Answer:
20
Step-by-step explanation:
The question states that the sample size is 16 and standard deviation of sampling distribution of sample mean also known as standard error is 5. This information can be written as
σxbar=standard error=5 ,n=sample size=16.
We have to find population standard deviation σ.
We know that
[tex]Standard error=\frac{population standard deviation}{\sqrt{n} }[/tex]
[tex]population standard deviation=\sqrt{n} *(standard erorr)[/tex]
[tex]\sqrt{n} =\sqrt{16} =4[/tex]
Population standard deviation=σ=4*5=20
