SOLUTION: Construct a confidence interval for the population mean u. c=0.90, x=16.4, s=9.0, and n=50. A 90% confidence interval for u is (_,_). ( round to one decimal place)

Algebra ->  Probability-and-statistics -> SOLUTION: Construct a confidence interval for the population mean u. c=0.90, x=16.4, s=9.0, and n=50. A 90% confidence interval for u is (_,_). ( round to one decimal place)      Log On


   

Question 1059213: Construct a confidence interval for the population mean u. c=0.90, x=16.4, s=9.0, and n=50. A 90% confidence interval for u is (_,_). ( round to one decimal place)
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Construct a confidence interval for the population mean u. c=0.90, x=16.4, s=9.0, and n=50. A 90% confidence interval for u is (_,_). ( round to one decimal place)
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sample mean = 16.4
ME = z*s/sqrt(n) = 1.645*9/sqrt(50) = 2.1
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90% CI:: 16.4-2.1 < u < 16.4+2.1
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90% CI: (14.3 , 18.5)
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Cheers,
Stan H.
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