SOLUTION: Construct the confidence interval for the population mean μ. c=0.90​, x overbar equals 9.4​, σ=0.5​, and n=50

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Question 1044000: Construct the confidence interval for the population mean μ.
c=0.90​, x overbar equals 9.4​, σ=0.5​, and n=50
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
CI=z(0.95)sigma/sqrt(n)
=1.282*0.5/7.071
=0.0907
Add and subtract that from the mean
(9.31,9.49)