SOLUTION: Suppose a simple random sample of size 64 is obtained from a population with a mean μ=80 and standard deviation σ=16 . Use this information to find P(x

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Question 1183821: Suppose a simple random sample of size 64 is obtained from a population with
a mean μ=80 and standard deviation σ=16 . Use this information to find
P(x > 86).
Answer by Edwin McCravy(20055) (Show Source):
You can put this solution on YOUR website!

Suppose a simple random sample of size 64 is obtained from a population with a mean μ=80 and standard deviation σ=16 . Use this information to find P(x > 86).
On your TI-84, press 2ND press VARS press 2 Make the screen read: normalcdf lower:86 upper:99999999 μ:100 σ:16/√(64) <---the square root key is 2ND x² Paste Scroll down with the down arrow to Paste Press ENTER Read on the screen normalcdf(86,99999999,80,100,16/√(64)) Press ENTER Read 0.0013499672 round to 0.0013 Edwin

SOLUTION: Suppose a simple random sample of size 64 is obtained from a population with a mean μ=80 and standard deviation σ=16 . Use this information to find P(x > 86).