Description
Construct the 95% two-sided confidence interval and one-sided intervals of the population mean with the sample: 15, 30, 45, 10, 20, 8, 6, 7, 21, 25, 10, 20, 20, 30, 40.
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Explanation & Answer
95% Confident the population mean is within the range: 20.47+/- 1.96*11.898/sqrt(15)
13.8811 < mean <27.0589
One- sided 95% CI: right sided: 25.52 (20.47+1.645*11.898/sqrt(15))left- sided: 15.42 (20.47-1.645*11.898/sqrt(15))
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