If n=12, x=38, and s=18, 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. Can we conclude that the population mean is at least 32.42? Can we conclude that the population mean is no more than 47.08?

Q: If n-29, 7(x-bar)-35, and s-7, construct a confidence interval at a 90% confidence level. Assume the…

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Q: If n = 10, ¯xx¯ = 43, and s = 8, construct a confidence interval at a 90% confidence level. Assume…

A: Since population standard deviation is unknown, Use t-distribution to find t-critical value. Find…

Q: If n = 14, ¯x = 39, and s = 13, construct a confidence interval at a 95% confidence level. Assume…

A: Since the sample size is small and population standard deviation is unknown, t distribution can be…

Q: If n=16, ¯xx¯(x-bar)=46, and s=12, construct a confidence interval at a 95% confidence level. Assume…

A: Given n=16 x=46 s=12 CL=95% Data is normally distributed

Q: If n=32, ¯xx¯(x-bar)=49, and s=11, construct a confidence interval at a 90% confidence level. Assume…

A: If n=32, x¯(x-bar)=49, and s=11, construct a confidence interval at a 90% confidence level. Assume…

Q: A If n=21, ¯x (x-bar)=34, and s=8, construct a confidence interval at a 98% confidence level. Assume…

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Q: If n=22, ¯xx¯(x-bar)=45, and s=4, construct a confidence interval at a 90% confidence level. Assume…

A: Ans -   Given the level of confidence interval   90 %                      Then   α = 1 - 0.90 =…

Q: If n=31, ¯xx¯(x-bar)=34, and s=11, construct a confidence interval at a 90% confidence level. Assume…

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Q: If n = 22, x¯ = 34, and s = 19, construct a confidence interval at a 98% confidence level. Assume…

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Q: If n=31, (x-bar)=49, and s=3, construct a confidence interval at a 80% confidence level. Assume the…

A: Given, Sample size = 31 Sample mean = 49 Sample standard deviation = 3   Since the population…

Q: If n 19, x =40, and s = 20, construct a confidence interval at a 80% confidence level.

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Q: If n = 28, ¯xx¯ = 49, and s = 19, construct a confidence interval at a 90% confidence level. Assume…

A: Given information- Sample size, n = 28 Sample mean, x-bar = 49 Sample standard deviation, s = 19…

Q: If n = 22, ¯xx¯ = 44, and s = 11, construct a confidence interval at a 95% confidence level. Assume…

A: Obtain the 95% confidence interval for the population mean. The 95% confidence interval for the…

Q: If n=19, ¯xx¯(x-bar)=37, and s=13, construct a confidence interval at a 99% confidence level. Assume…

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Q: If n=12, (x-bar)=33, and s=16, construct a confidence interval at a 80% confidence level. Assume the…

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Q: If n = 25, ¯x = 50, and s = 19, construct a confidence interval at a 99% confidence level. Assume…

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Q: n=31, ¯xx¯(x-bar)=30, and s=5, construct a confidence interval at a 98% confidence level. Assume the…

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Q: If n=15, ¯x (x-bar)=48, and s=4, construct a confidence interval at a 80% confidence level. Assume…

A: Since the population standard deviation is unknown, t distribution can be used for the computation…

Q: If n = 14, ¯x = 50, and s = 3, construct a confidence interval at a 95% confidence level. Assume the…

A: Given information: The sample mean is x-bar = 50. The sample standard deviation is s = 3. The sample…

Q: If n=32, x(x-bar)=47, and s=18, construct a confidence interval at a 99% confidence level. Assume…

A: Given that  Sample size n =32 Sample mean =47 Standard deviation =18

Q: If n = 15, ¯x = 50, and s = 9, construct a confidence interval at a 90% confidence level. Assume the…

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Q: If n = 12, ¯x= 30, and and s = 13, construct a confidence interval at a 90% confidence level. Assume…

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Q: If n=12, x=47, and s=7, construct a confidence interval at a 98% confidence level. Assume the data…

A: According to the provided information,

Q: If a confidence interval has a width 1 based on a sample of 50 observations, what is the width if…

A: Sampl size=50 , Width=1 If sample size is increased to 800 sigma, Zc are constant

Q: If n=22, ¯xx¯(x-bar)=38, and s=13, construct a confidence interval at a 80% confidence level. Assume…

A: The data provided is- x-bar = sample mean = m = 38 s = standard deviation = 13 n = sample mean = 22…

Q: . A researcher collects a sample of 24 measurements from a population and wishes to find a​ 99%…

A: The degrees of freedom is,

Q: If n = 18, = 46, and s = 16, construct a confidence interval at a 90% confidence level. Assume the…

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Q: If n = 16, ¯xx¯ = 32, and s = 10, construct a confidence interval at a 80% confidence level. Assume…

A: We have given that,  Sample mean (x̄) = 32, sample size (n) = 16 and standard deviation (s) = 10…

Q: If n=23, ¯xx¯(x-bar)=48, and s=2, construct a confidence interval at a 99% confidence level. Assume…

A: Solution-: Given: x¯=48,n=23,s=2,c=0.99 We construct C.I. at a 99% confidence level.

Q: If n=n= 22, x= 32, and s= 16, construct a confidence interval at a 99% confidence level. Assume the…

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Q: If n = 19, ¯xx¯ = 34, and s = 20, construct a confidence interval at a 95% confidence level. Assume…

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Q: If n=26, ¯xx¯(x-bar)=31, and s=17, construct a confidence interval at a 98% confidence level. Assume…

A: From the provided information, Sample size (n) = 26 Sample mean (x̅) = 31 Sample standard deviation…

Q: If n=14, (x-bar)=46, and s=18, construct a confidence interval at a 80% confidence level. Assume the…

A: Since population standard deviation is unknown, Use t-distribution to find t-critical value. Find…

Q: If n=25, 7(x-bar)=36, and s=7, construct a confidence interval at a 80% confidence level. Assume the…

A: Question 7: Let μ is defined as the population mean. The sample size is 25, sample mean is 36, and…

Q: If n=41, ¯x=39, and s=16, construct a confidence interval at a 99% confidence level. Assume the data…

A: Given that  Sample size (n) = 41 Sample mean (x¯) = 39 Sample standard deviation (s) = 16 Confidence…

Q: f n=19, sample mean=50, and s =8, construct a confidence interval at a 99% confidence level. Assume…

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Q: If n=19, ¯xx¯(x-bar)=38, and s=8, construct a confidence interval at a 90% confidence level. Assume…

A: Given,   Sample size = 19 Sample mean = 38 Sample standard deviation = 8   Since the population…

Q: If n=19, ¯xx¯(x-bar)=42, and s=7, construct a confidence interval at a 95% confidence level. Assume…

A: Sample mean (x̄) = 42 , standard deviation      (s) = 7 and sample size (n) = 19 Then,  We will find…

Q: If n = 14, ¯xx¯ = 44, and s = 18, construct a confidence interval at a 95% confidence level. Assume…

A: Given information- Sample size (n) = 14 Mean x̅ = 44 Standard deviation (s) = 18 Significance…

Q: If n = 24 , overline x (x-bar)=40 , and s = 20 . construct a confidence interval at a 95% confidence…

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Q: If n = 20, ¯xx¯ = 47, and s = 10, construct a confidence interval at a 80% confidence level. Assume…

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Q: 15, ¯xx¯(x-bar)=39, and s=11, construct a confidence interval at a 95% confidence level. Assume the…

A: Sample size (n) =15 Sample mean (x¯)=39 Sample standard deviation (s)=11 Confidence level (C)=95%…

Q: If n=14, ¯x¯(x-bar)=50, and s=4, construct a confidence interval at a 99% confidence level. Assume…

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Q: If n = 23, ¯x = 35, and s = 3, construct a confidence interval at a 95% confidence level. Assume the…

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Q: If n=16, ¯xx¯(x-bar)=45, and s=17, construct a confidence interval at a 99% confidence level. Assume…

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Q: If n=n= 19, ¯xx¯ = 40, and s=s= 19, construct a confidence interval at a 80% confidence level.…

A: The sample size n is 19.

Q: If n=14, ¯xx¯(x-bar)=34, and s=4, construct a confidence interval at a 80% confidence level. Assume…

A: Given , Sample size n = 14 Mean = x bar = 34 Standard deviation  s = 4

Q: If n=16, x¯(x-bar)=48, and s=7, construct a confidence interval at a 98% confidence level. Assume…

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Q: If n=21, ¤(x-bar)=39, and s=7, construct a confidence interval at a 99% confidence level. Assume the…

A: Sample mean =39Standard deviation = 7Sample size = 2199% confidence level

Q: If n=24, (x-bar)=D34, and s=9, construct a confidence interval at a 95% confidence level. Assume the…

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