SOLUTION: Construct the confidence interval for the population mean μ.
c=0.90, x overbar =9.4, σ=0.5, and n=50
A 90% confidence interval for μ is? (Round to two decimal pl
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Question 1044816: Construct the confidence interval for the population mean μ.
c=0.90, x overbar =9.4, σ=0.5, and n=50
A 90% confidence interval for μ is? (Round to two decimal places as needed.)
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
90% CI is mean +/- 1.645 (z)*sigma/sqrt (n)
9.4 +/- 1.645*0.5/sqrt(50); this last part, the std error, is 0.1163 or 0.12
(9.28,9.52)
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