Construct practices exercises

# Construct practices exercises - 1 Construct a 95 two-sided...

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1. Construct a 95% two-sided confidence interval 2SCI on the population mean, μ, based upon a Sample mean of 54 Population σ = 7.8 Sample size of 14. μ 2. Construct a 99% two-sided confidence interval 2SCI on the population mean, μ, based upon a Sample mean of 89.6 Population σ = 9 Sample size of 35 . 1

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3. Construct an 90% two-sided confidence interval 2SCI on the Population mean, μ, based upon a sample mean of 75 Sample standard deviation, s = 12 Sample size of 49. 4. Construct a 90% two-sided confidence interval 2SCI on the Population mean, μ, based upon a sample mean of 87 Sample standard deviation, s = 15 Sample size of 16 2
5. Construct an 80% two-sided confidence interval 2SCI on the Population mean, μ, based upon a sample mean of 36 Sample standard deviation of s = 9 Sample size of 25 6. Construct a 99% two-sided confidence interval 2SCI on the Population mean, μ, Based upon the sample mean of 43.5 Sample standard deviation of s = 7.6 Sample size of n = 10 3

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7. Construct a lower-tailed 92% confidence interval CI

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