What is the confidence coefficient for the confidence intervals for population mean if the confidence level is 90%, the sample size is 20 and the population standard deviation is known
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A: Given, n = 32 mean, -x = 35 Standard deviation, σ = 8.3 Confidence level = 99%
Q: A 90% confidence interval for the population mean is 30 < mu < 50. What is the sample mean?
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A: Sample mean = x̅ = 34 Sample size = n = 30 Population S.D = σ = 11.3
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A: Given S=7.68 n=117
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A: Given that: n= 37.0 , x̄= 56.0 σ= 12.6 At 95.0 % confidence level , z score= 1.96
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A: Mean =79Standard deviation = 13.7Sample size = 3099% confidence level
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A: Solution
What is the confidence coefficient for the confidence intervals for population mean if the confidence level is 90%, the sample size is 20 and the population standard deviation is known
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