In a survey of 2208 adults in a recent​ year, 1438 say they have made a New​ Year's resolution.   Construct​ 90% and​ 95% confidence intervals for the population proportion. Interpret the results and compare the widths of the confidence intervals.

Q: If n=380 and p^(p-hat) =0.12, find the margin of error at a 95% confidence level Give your answer…

A: Given data: n = 380  p^(p-hat) =0.12, To find : The margin of error at a 95% confidence level

Q: If a 92% Confidence Interval for the Population Mean is (67.8, 78.9), find its Margin of Error.

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Q: If n=470 andp (p-hat) =0.69, find the margin of error at a 95% confidence level Give your answer to…

A: If the number of possible observations from the total sample size is calculated using the proportion…

Q: If n=590 and ˆp (p-hat) =0.81, find the margin of error at a 95% confidence level Give your answer…

A: Obtain the critical value: The confidence level is 100*(1–α)% = 95%. The critical value…

Q: If n=360 and P (p-hat) =0.48, find the margin of error at a 95% confidence level Give your answer to…

A: Given: n=360  , p^=0.48  we have to find margin of error at 95% confidence level

Q: If n = 560 and X = 448, construct a 95% confidence interval for the population proportion, p. %3D…

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Q: What is the margin of error if we find a 95% confidence interval for the percentage of Corvettes on…

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Q: If n=520 and p (p-hat) =0.47, find the margin of error at a 90% confidence level Give your answer to…

A: Given data,n=520p=0.47z-value at 90% confidence is Zc=1.645Margin of error(E)=?

Q: If n = 230 and X = 184, construct a 99% confidence interval for the population proportion, p.Give…

A: Given data n = 230 x = 184 sample proportion

Q: If n=280 and ˆpp^ (p-hat) =0.83, find the margin of error at a 99% confidence level Give your…

A: The margin of error = The margin of error (ME) expresses the maximum expected differences between…

Q: If n = 180 and X = 144, construct a 90% confidence interval for the population proportion, p. Give…

A: Solution: From the given information, X=144, n=180 and the confidence level is 0.90. The sample…

Q: If n=230 and ˆp^ (p-hat) =0.31, find the margin of error at a 90% confidence level Give your answer…

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Q: If n=300 and ˆpp^ (p-hat) =0.52, find the margin of error at a 90% confidence level Give your…

A: Suppose p is the true proportion.

Q: If n=360 and p (p-hat) =0.29, find the margin of error at a 95% confidence level Give your answer to…

A: Given that : Sample size (n) = 360 P(hat) = 0.29 Confidence interval is 95%  We use here, Margin of…

Q: If n=490 and ˆpp^ (p-hat) =0.4, find the margin of error at a 90% confidence level Give your answer…

A: Given that, n = 490 p^=0.4 90% confidence level

Q: If n=120 and p^ (p-hat) =0.84, find the margin of error at a 95% confidence level Give your answer…

A: Find z-critical value:…

Q: If n=210 and ˆpp^ (p-hat) =0.86, find the margin of error at a 90% confidence level Give your…

A:

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

A: Given that, n = 530 x = 424 Point estimate = sample proportion =  = x / n = 424 /530=0.8 1 -  =…

Q: The County Development Agency does a survey of all the mobile home manufacturers in Clarion County…

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Q: In a survey of 1000 people, 850 said they would not to travel to Disney World this summer. Construct…

A: Given: n=1000 and x=850 Then,p^=xn=8501000=0.85

Q: If n=130 and ôp (p-hat) =0.93, find the margin of error at a 99% confidence level Give your answer…

A: Here, the margin of error for proportion p^ is to be calculated. The formula is given by, z*p^1-p^n,…

Q: In a survey of 2298 ​adults, 709 say they believe in UFOs. Construct a 95% confidence interval for…

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Q: In a sample of 85 statistics students, 41 said that finding confidence intervals for population…

A: It is given that x is 41 and sample size (n) is 85. The confidence level is 0.99.

Q: If n=230 and ˆpp^ (p-hat) =0.8, find the margin of error at a 90% confidence level Give your answer…

A: From the given information,   Sample size = 230 Sample proportion = 0.8 The objective is to find the…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

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Q: If n=570 and ˆpp^ (p-hat) =0.51, find the margin of error at a 95% confidence level Give your…

A: n = 570 p^=0.51 95% confidence level

Q: If n= 220, p-hat= .4, then what will be the 87.4% confidence interval for the population proportion?

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Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Solution: From the given information, confidence level is 0.90 and E=0.06.

Q: If n=530 and ˆpp^ (p-hat) =0.75, find the margin of error at a 90% confidence level Give your…

A: Givenn=530p^=0.75confidence level=90%

Q: If n = 440 and X = 352, construct a 90% confidence interval for the population proportion, p. Give…

A:

Q: If n=490 and ˆpp^ (p-hat) =0.54, find the margin of error at a 90% confidence level Give your…

A:

Q: Out of 100 people sampled, 54 had kids. Based on this, construct a 90 % confidence interval for the…

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Q: If n=350 and ˆpp^ (p-hat) =0.64, find the margin of error at a 90% confidence level Give your…

A: Proportion is almost similar to the concept of probability. Proportion is a fraction of population…

Q: In a survey of 2312 adults, 748 say they believe in UFOS. Construct a 99% confidence interval for…

A: Given that the sample size is n = 2312, And the number of adults who believe in UFOs, X = 748 At 99%…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Given:Margin of error (E) = 0.09Confidence level = 90%Since, the proportion of people that support…

Q: If n=360 and p (p-hat) =0.48, find the margin of error at a 95% confidence level Give your answer to…

A: Given data,n=360p=0.48Z value at 95% CI is Zc=1.96Margin of error E=?

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Find z-critical value:…

Q: After surveying 625 potential voters polled, you find out that 325 support candidate X and 300…

A: The sample proportion confidence interval is, p^±Zp^(1-p^)nwhere, p^ = the sample proportion…

Q: Use the given degree of confidence and sample data to construct a confidence interval for the…

A: Given : Sample Size, n = 316 Number of successes, x = 112 confidence level,c=0.99…

Q: If n=200 and ˆpp^ (p-hat) =0.16, find the margin of error at a 95% confidence level Give your…

A: Given Information

Q: Construct a 99% confidence interval for the population proportion

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Q: In a survey of 952 respondents, 620 of them voted in a recent election. Find a 95% confidence…

A: From the provided information, Number of respondents (n) = 952 Number of respondents who voted in a…

Q: If n = 550 and X = 440, construct a 90% confidence interval for the population proportion, p. Give…

A: Given information:Total number of trials (n) = 550Number of success (X) = 440Confidence level = 0.90

Q: If n=480 and p^ (p-hat) =0.45, find the margin of error at a 90% confidence level Give your answer…

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Q: In 2013, the Gallup poll asked 1,039 American adults if they believe there was a conspiracy in the…

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Q: Construct 95% confidence intervals for the population proportion of college students who gave each…

A: The sample proportion of college students that expect to stay at their first employer for 3 or more…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: As there is no any estimates available, the sample proportion is assumed to be 0.50, that is,…

Q: If n=410 and p (p-hat) =0.47, find the margin of error at a 90% confidence level Give your answer to…

A: The random variable X follows binomial distribution. The sample size is 410. The sample proportion…

Q: If n=350 and p (p-hat) =0.28, find the margin of error at a 99% confidence level Give your answer to…

A: n = 350p^ = 0.2899% confidence level

Q: If n = 560 and X = 448, construct a 95% confidence interval for the population proportion, p. Give…

A: The sample proportion is, p^=448560=0.80 The sample proportion is 0.80. Computation of critical…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.