I have a sample of 10 squirrels and this sample gives me a s

I have a sample of 10 squirrels and this sample gives me a standard error of 100 g for the mean body weight of squirrels in the population. How many replicates do I need to reduce the standard error to 10 g? Question 2 options: About 1000, About 50, About 20, About 500, About 100. Show your work.

Solution

standard error = s/vn=s/sqrt(10) =100

So standard error = 10 = s/vn

So n=100

Answer: About 100