SOLUTION: Assume a random sample of n measurements is selected from a population with a mean of 20 and a standard deviation of 40. What's ox?
Algebra.Com
Question 1140470: Assume a random sample of n measurements is selected from a population with a mean of 20 and a standard deviation of 40. What's ox?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
Not clear what question is being asked
The mean of the sample is 20
the sd of the sample is 40/sqrt(20)=8.95 or 4 sqrt(5) (exact value)
RELATED QUESTIONS
A random sample of size 36 is to be selected A from a population that has a mean μ = (answered by ewatrrr)
Consider a normal population with a mean of 50 and standard deviation of 2. A random... (answered by Boreal)
3. Assume a very large normally distributed population of scores on a test with mean 77... (answered by stanbon)
A random sample will be selected from a population of rabbits. The weights of the rabbits (answered by Boreal)
Suppose a random sample of 36 is selected from a population with a standard deviation of... (answered by Boreal)
Let us assume that from a population with mean μ=100 and standard
deviation σ=15 a... (answered by Edwin McCravy)
Let us assume that from a population with mean μ=100 and standard deviation σ=15 a... (answered by CPhill)
A random sample is selected from a normal population with a mean of u=40 and a standard... (answered by jim_thompson5910)
Consider an infinite population with a mean of 160 and a standard deviation of 25. A... (answered by stanbon)