SOLUTION: A population has a mean of 200 and a standard deviation of 50.suppose a simple random sample of size 100 is selected and used to estimate population mean(u),what is the probability
Algebra ->
Probability-and-statistics
-> SOLUTION: A population has a mean of 200 and a standard deviation of 50.suppose a simple random sample of size 100 is selected and used to estimate population mean(u),what is the probability
Log On
Question 1149463: A population has a mean of 200 and a standard deviation of 50.suppose a simple random sample of size 100 is selected and used to estimate population mean(u),what is the probability that the sample mean will be within +/-5 of the Population mean Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! half-interval=z*sigma/sqrt(n)
5=z*50/sqrt(100)=5z
z=1
or z=-1
That probability is between those two z values or 0.6826
