SOLUTION: If n=17, ¯x (x-bar)=50, and s=13, construct a confidence interval at a 80% confidence level. Assume the data came from a normally distributed population.
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-> SOLUTION: If n=17, ¯x (x-bar)=50, and s=13, construct a confidence interval at a 80% confidence level. Assume the data came from a normally distributed population.
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Question 1157905: If n=17, ¯x (x-bar)=50, and s=13, construct a confidence interval at a 80% confidence level. Assume the data came from a normally distributed population.
Give your answers to one decimal place.
______ < μ < ________. Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! the half-interval is t(0.90 df=16)*s/sqrt(n)
=1.337*13/sqrt(17)
=4.22. This is added to and subtracted from x bar to give the 80% CI for the parameter mu.
(45.8 < mu < 54.2)
