SOLUTION: A random sample of 41 NBA players gave a standard deviation s = 3.32 inches for their height. How many more NBA players have to be included in the sample to make 95% sure that the

Algebra ->  Statistics  -> Confidence-intervals -> SOLUTION: A random sample of 41 NBA players gave a standard deviation s = 3.32 inches for their height. How many more NBA players have to be included in the sample to make 95% sure that the       Log On


   



Question 934899: A random sample of 41 NBA players gave a standard deviation s = 3.32 inches for their height. How many more NBA players have to be included in the sample to make 95% sure that the sample mean ¯x of their height is within 0.75 inch of the mean µ of the height of the population of all NBA players.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A random sample of 41 NBA players gave a standard deviation s = 3.32 inches for their height. How many more NBA players have to be included in the sample to make 95% sure that the sample mean ¯x of their height is within 0.75 inch of the mean µ of the height of the population of all NBA players.
------
n = [z*s/E]^2
----
n = [1.96*3.32/0.75]^2 = 76 when rounded up
-----------------
Cheers,
Stan H.
--------------