If n=18, (x-bar)=D43, and s=5, construct a confidence interval at a 98% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place. < H < Question Help: Message instructor Submit Question

Q: If n- 22, - 44, and s 12, construct a confidence interval at a 95% confidence level. Assume the data…

A: Solution We solve it by using excel

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-25, -46, and s-5, construct a confidence interval at a 95% confidence level. Assume the data…

A: Givenn=25x=46s=5confidence level = 95%

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Q: If n - 180 and p (p-hat) = 0.3, construct a 99% confidence interval. Give your answers to three…

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A: 1. The conditions for using t-distribution are: Sample size is small. Population standard deviation…

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=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 = 22, ¯xx¯ = 36, and s = 14, construct a confidence interval at a 98% confidence level. Assume…

A: From the provided information, Sample size (n) = 22 Sample mean (x̄) = 36 Standard deviation (s) =…

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: Confidence level-99%, degrees of freedom=19 JE

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Q: construct a confidence interval at a 98% confidence level.

A: Given : n=29 , X-bar=39  , s=11  , α=0.02 Since , the population standard deviation (σ) is unknown.…

Q: If n = 16, 7 = 43, and s = 17, construct a confidence interval at a 98% confidence level. Assume the…

A:

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: You are interested in finding a 95% confidence interval for the average commute that non-residential…

A: Given sample is : 10 25 11 16 20 27 10 24 14 28 Sample size n = 10 sample mean = 185/10 = 18.5…

Q: Determine the t score used for the confidence interval. Report to 3 decimal places. n 3 6 and 95%…

A: Solution: 23. From the given information, n=6 and the confidence level is 0.95.

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: Assume that population mean is to be estimated from the sample described. Use the sample results to…

A: Given95% confidence interval N=361 x = 59.1 seconds. z= 4.9 SecondsFind the margin of error?

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A: It is given that sample size (n) is 70  and x is 50.

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A: The sample mean is 71 inches and the sample standard deviation is 2.7 inches.

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A: Given,saple size(n)=10sample mean(x)=13.5standar deviation(s)=8.6442degrees of…

Q: one with a 95% confidence level and the other with a 99.7% confidence level. Which interval is…

A: Confidence interval is probability, which refers that population parameter will fall within set of…

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 n=27, x=48, and s-6, construct a confidence interval at a 80% confidence level. Assume the data…

A:

Q: If n = 17, ¯xx¯ = 33, and s = 6, construct a confidence interval at a 99% confidence level. Assume…

A: We have, If n = 17, x¯ = 33, and s = 6, alpha=1-0.99= 0.01 Therefore  Degrees of freedom= n-1=16…

Q: Use the given data to construct a confidence interval of the requested level. X = 178, N=531,…

A: Given : Sample Size, n = N = 531 Number of successes, x = 178

Q: lculating the confidence interval.

A: x Freq 1 3 2 5 3 19 4 7 5 6 Total 40

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: If n=28, x(x-bar)=44, and s=10, construct a confidence interval at a 95% confidence level. Assume…

A: From the provided information, Sample size (n) = 28 Sample mean (x̄) = 44 Sample standard deviation…

Q: If n = 41, ã=30, and s = 6, construct a confidence interval at a 80% confidence level.

A: It is given that Sample size n = 41 Sample mean = 30 Sample SD s = 6 The critical value of t at df =…

Q: Which of the following decreases the margin of error for a confidence interval? Decreasing the…

A: given data we want to decrease margin of error for a confidence interval.

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=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: n = 480 and X = 384, construct a 90% confidence interval for the population proportion, p. Give…

A: Here is given that, n =480   x = 384 We will use one proportion  z confidence interval.

Q: Determine whether the statement below makes sense or does not make sense. Explain clearly.

A: Here given , Based on our sample, the 95% confidence interval for the mean amount of television…

Q: Mark each statement TRUE or FALSE. For these problems, assume that to estimate average time spent…

A: It is given that the sample size is 10.

Q: If n=550 and X = 440, construct a 90% confidence interval. Give your answers to three decimals <p<

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Q: Translate the statement into a confidence interval. Approximate the level of confidence. In a…

A: Given Information:  In a survey of 3674 adults in a​ country, 48​% believe the economy is getting…

Q: If n=21, (x-bar)=37, and s=3, construct a confidence interval at a 90% confidence level. Assume the…

A: Given Information: Sample size n=21 Sample mean x¯=37 Sample standard deviation s=3 Confidence level…

Q: and X = 96, construct a 90% confidence interval for the population proportion, p. Give your answers…

A: Given X=96 N=120

Q: If n = 15, ¯xx¯ = 36, and s = 12, construct a confidence interval at a 90% confidence level. Assume…

A: Given information- Sample size, n = 15 Mean systolic blood pressure, x-bar = 36 Sample standard…