A 93.32% Cl is given as (2.5, 3.5). From this information, find a 95% confidence interval (yes, this is possible).

Q: If n=32, ¯xx¯(x-bar)=31, and s=14, construct a confidence interval at a 95% confidence level. Assume…

A: Given: x¯=31n=32s=1495% confidence level

Q: Out of a sample of 600 adults aged 18 to 30, 162 still lived with their parents. Based on this,…

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Q: If n = 100 and p (p-hat) = 0.9, construct a 95% confidence %3D interval. Give your answers to three…

A: Givensample size(n)=100p^=0.9α=1-0.95=0.05α2=0.025zc=zα2=z0.025=1.96   (from z table)

Q: If n=30, ¯xx¯(x-bar)=43, and s=16, construct a confidence interval at a 98% confidence level. Assume…

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Q: If n=30, (x-bar)=38, and s=8, construct a confidence interval at a 90% confidence level. Assume the…

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Q: If n = 280 and ô (p-hat) = 0.8, construct a 90% confidence interval. Give your answers to three…

A: given data sample size (n) = 280p^ = 0.890% ci p.

Q: If n = 600 and p (p-hat) = 0.7, construct a 95% confidence interval. Give your answers to three…

A: It is given that, n = 600 and p (p-hat) = 0.7. we have to find the 95% confidence interval for true…

Q: A poll of n = 500 randomly selected elementary school students resulted in 110 of them stating…

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Q: Assume we found a 98% confidence interval for the true difference in proportions of those who…

A: The information provided in the question are as follows : The 98% confidence interval for the true…

Q: a 95% confidence interval estimate for population mean is determined to be 75.38 to 86.52. if the…

A: We have  to find the confidence level is reduced to 90%, the confidence interval will....

Q: If n=10, ī(x-bar)=37, and s=19, construct a confidence interval at a 95% confidence level. Assume…

A: From the provided information, Sample size (n) = 10 Sample mean (x̄) = 37 Standard deviation (s) =…

Q: If n=15, ¯xx¯(x-bar)=30, and s=2, construct a confidence interval at a 98% confidence level. Assume…

A: Given Sample size n = 15  degree of freedom = n-1 =14 x the level of confidence interval   98 %…

Q: sample of 97 psychology graduates found an average salary of $71 K/year. Assume ?=$14 K/year. Find…

A: Given Z score 90% confidence interval=1.645 Sigma=14 n=97

Q: Part A: Make a 90% confidence interval for given that you have a sample of size 49 which produced a…

A: Given,margin of error(E)=0.2standard error(σ)=3.2α=1-0.90=0.10α2=0.05Z0.05=1.645      (from Z-table)

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=22, ¯xx¯(x-bar)=46, and s=8, construct a confidence interval at a 98% confidence level. Assume…

A: It is given that mean and standard deviation are 46 and 8, respectively.

Q: Among a random sample of 400 restaurant workers, we find that 6.25% of workers have been working at…

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Q: If n = 160 and p (p-hat) = 0.85, construct a 95% confidence interval. Give your answers to three…

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Q: Identify the t-score for a 90% confidence interval if the sample size is 25. t = The answer isnt…

A: We have given that Confidence level (c) = 90% = 0.90 Significance level (α) = 1 - c = 1 - 0.90 =…

Q: If n = 320 and p (p-hat) = 0.7, construct a 90% confidence interval. Give your answers to three…

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Q: Find the following. z a/2 at the 86% confidence interval

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Q: If n=540 and (p-hat) = 0.13, construct a 99% confidence interval. Give your answers to three…

A: We have given that,  Sample size (n) = 540  Sample proportion (p-hat) = 0.13 Then,  We will find the…

Q: In a random sample of 500 Americans, 25% indicated that they have a cat for a pet. Estimate with 97%…

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Q: A 95% confidence interval forp is given as (0.34,0.66). How large was the sample used to construct…

A: Formula for the sample size needed to estimate a population proportion is

Q: Last year your professor taught economics courses to N = 200 students. From this group you randomly…

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Q: A recent study indicated that 24% of women over 55 are widows. A researcher wishes to estimate with…

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Q: In a random sample of 500 Americans, 50% indicated that they have a cat for a pet. Estimate with 95%…

A: Given information

Q: A random sample of high school students is used to estimate the mean time all high school students…

A: Solution: From the given information, a 99% confidence interval is 1.7 hours to 3.1 hours.

Q: 13, ¤(x-bar)=39, and s=16, construct a confidence interval at a 90% confidence level. Assume the…

A: From the given information, n=13 x-bar=39 s=16 Confidence level=90% Significance level=10%…

Q: Free of CVD       Prevalent CVD    Total Men          1548                 244                 1792…

A: Given The tota number of men with CVD =244The tota number of women with CVD =135The tota number of…

Q: If n=15, ¯xx¯(x-bar)=40, and s=9, construct a confidence interval at a 98% confidence level. Assume…

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Q: If n = 380 and X = 304, construct a 95% confidence interval for the population proportion, p. Give…

A: Given: n = 380 x = 304

Q: If n=15, ¯xx¯(x-bar)=33, and s=19, construct a confidence interval at a 80% confidence level. Assume…

A: Given' :  sample mean xbar=33  sample size n=15  sample standard deviations s=14  then to find 80%…

Q: If n=160 and X = 128, construct a 90% confidence interval. Give your answers to three decimals  <…

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Q: Out of a survey of 3200 people who own a hot tub, only 70% use it at least once each week. This was…

A: Solution: From the given information, p-hat is 70% and the margin of error is E=1.7%.

Q: If n = 460 and p (p-hat) = 0.6, construct a 90% confidence interval. Give your answers to three…

A: Given:

Q: If n = 530 and X = 424, construct a 99% confidence interval for the population proportion, p. Give…

A: