Please show a detailed step by step procedure. In another pre-election poll, a pollster finds that 372 out of 600 people polled favor Smith. Construct the 95% confidence interval  for the proportion (to nearest 0.001) of people in the whole population who favor Smith.

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: In a survey of 3001 ​adults, 1486 say they have started paying bills online in the last year.…

A: Assuming that the number of people paying bills online has a binomial distribution with n=3001, and…

Q: In a survey of 2224 adults in a recent​ year, 1280 say they have made a New​ Year's resolution.…

A: Obtain the 90% confidence interval for the population proportion. The 90% confidence interval for…

Q: In a survey of 2865 ​adults, 1413 say they have started paying bills online in the last year.…

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

A: Sample size:The minimum sample size for a desired confidence level, α with a given margin of error,…

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

A: In this question, It has been given that Margin of error = 0.05 and level of significance = 0.005.…

Q: find the sample size needed to estimate the percentage of democrats who have tattoos. Use a 0.05…

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

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Q: n a survey of 2558 ​adults, 1413 say they have started paying bills online in the last year.…

A: Solution: Given information: n= 2558 Sample size of adults  x = 1413 adults started paying bills…

Q: A survey of 700 non-fatal accidents showed that 167 involved uninsured drivers. Construct a 99%…

A: Given data,n=700x=167Point estimate isp=xn=167700=0.2386Construct a 99% confidence interval?

Q: In a survey of 2549 adults in a recent​ year, 1270 say they have made a New​ Year's resolution.…

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Q: In a survey of 2195 adults in a recent​ year, 1454 say they have made a New​ Year's resolution.…

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Q: In a survey of 2000 adults in a recent​ year, 708 made a New​ Year's resolution to eat healthier.…

A: Confidence interval for population proportion is given by, p^ +- z* √(pq/n) At 90% z = 1.645 At 95%…

Q: In a survey of 2703 ​adults, 1438 say they have started paying bills online in the last year.…

A: We have given that, Number of favorable cases(X) = 1438,   Sample size(n) = 2703 Sample proportion…

Q: a survey of 3447 adults, 1477 say they have started paying bills online in the last year.…

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Q: Suppose in a recent poll of 1250 randomly selected Californians who took vacations, 132 of them…

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Q: In a survey of 3185 adults, 1455 say they have started paying bills online in the last year.…

A:

Q: In a survey of 2002 adults in a recent​ year, 701 made a New​ Year's resolution to eat healthier.…

A: Given:

Q: in a survey of 2042 adults in a recent​ year, 715 made a New​ Year's resolution to eat healthier.…

A:

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

A:

Q: In a survey of 2255 adults, 741 say they believe in UFOS. Construct a 95% confidence interval for…

A:

Q: A pollster wanted to predict the upcoming results of the 2020 presidential elections in a local…

A:

Q: In a survey of 2108 adults in a recent​ year, 1305 say they have made a New​ Year's resolution.…

A:

Q: In a survey of 2000 adults in a recent​ year 1404, say they have made a New​ Year's resolution.…

A: n=2000x=1404

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

A: Solution:There is no estimates available, hence the sample proportion is assumed to be 0.50.The…

Q: lorry is a researcher who is curious about the proportion of students who are planning to pursue a…

A:

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

A:

Q: In a survey, 64% said they are most likely to sleep and 18% said they watch television. Although…

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Q: In another pre-election poll, a pollster finds that 442 out of 650 people polled favor Smith.…

A: Given: Total no of people polled , n=650 No. of people favor Smith, x=442 Confidence level=95%

Q: Construct a​ 99% confidence interval for the population proportion. Interpret the results.

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Q: A researcher wants to estimate the actual proportion of citizens of a certain country who feel that…

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Q: Suppose that insurance companies did a survey. They randomly surveyed 450 drivers and found that 310…

A: Obtain 95% confidence interval for the population proportion that claim to always buckle up. The 95%…

Q: In a survey of 2693 ​adults, 1495 say they have started paying bills online in the last year.…

A: Given that, In a survey of 2693 ​adults, 1495 say they have started paying bills online in the last…

Q: A researcher wanted to compare the percentages of men and women who play the lottery.  They randomly…

A:

Q: In a survey of 3071 ​adults, 1484 say they have started paying bills online in the last year.…

A: Given, Therefore, As per z-distribution table the critical value of z at 0.01 level of significant…

Q: In a survey of 2646 ​adults, 1401 say they have started paying bills online in the last year.…

A: Number of adults (n)  = 2646 Number of adults who say they have started paying bills online in the…

Q: 90% and​ 95% confidence intervals for the population proportion. Interpret the results and compare…

A: Answer Favorable cases [x] = 1230The sample size [n] = 2105

Q: In a survey of 2291 adults, 743 say they believe in UFOs. Construct a 99% confidence interval for…

A: sample size(n)=2291No. of adults say they believe in UFOs(x)=743

Q: In a survey of 2013 adults in a recent​ year, 731 made a New​ Year's resolution to eat healthier.…

A:

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.