In a sample of 120 adults, 102 had children. Construct a 99% confidence interval for the true population proportion of adults with children. Give your answers as decimals, to three places < p <

Q: Johnson Filtration, Inc., provides maintenance service for water-filtration systems throughout…

A: Given n=10 α=0.05

Q: In a sample of 310 adults, 205 had children. Construct a 99% confidence interval for the true…

A: Given data, n=310 x=205 p=x/n=205/310=0.661 z-value at 99% confidence is Zc=2.576

Q: In a recent poll, 300 people were asked if they liked dogs, and 54% said they did. Find the Margin…

A: Obtain the margin of error for the poll at the 95% confidence level. The margin of error for the…

Q: In a recent poll, 420 people were asked if they liked dogs, and 9% said they did. Find the Margin of…

A: Given: Sample size=n=420,Number of people who liked dogs:x=420×9100=37.8≈38,Significance…

Q: Out of 100 people sampled, 77 had kids. Based on this, construct a 95% confidence interval for the…

A: We have to find 95% confidence interval for the true population proportion of people with kids.

Q: In a recent poll, 370 people were asked if they liked dogs, and 69% said they did. Find the Margin…

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Q: In a recent poll, 260 people were asked if they liked dogs, and 9% said they did. Find the margin of…

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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: A national polling organization surveyed 1000 Americans and found that 350 admitted to being guilty…

A: Given: x=350 n=1000 p^=xn=3501000=0.35

Q: A television station surveys 200 customers and finds that 23% of customers watch the evening news.…

A: Given data n=200 p=23% confidence level=99%

Q: Out of 400 people sampled, 240 had kids. Based on this, construct a 95% confidence interval for the…

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Q: Out of 300 people sampled, 138 had kids. Based on this, construct a 90% confidence interval for the…

A: Given data, n=300 x=138 p=x/n=138/300 =0.46 z-value at 90% confidence is Zc=1.645

Q: In a recent poll, 270 people were asked if they liked dogs, and 15% said they did. Find the Margin…

A: given data sample size (n) = 270p^ = 0.1595% ci p, E = ?

Q: Find the Margin of Error for this poll, at the 95% confidence level.

A: It is given that in a recent poll, 210 people were asked if they liked dogs, and 36% said they did.…

Q: n a recent poll, 510 people were asked if they liked dogs, and 45% said they did. Find the Margin of…

A: Given Data Sample Size, n = 510 p̂= 0.45 Significance level, α =1-0.99…

Q: In a sample of 500 adults, 340 had children. Construct a 99% confidence interval for the true…

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

Q: construct a 95% confidence interval for the true population proportion of people with kids.

A:

Q: Out of 300 people sampled, 228 had kids. Based on this, construct a 90% confidence interval for the…

A: Introduction Sample size, n=300 No. of people who had kids, x=228 CL=0.90

Q: In a recent poll, 310 people were asked if they liked dogs, and 40% said they did. Find the Margin…

A: Given data: n = 310p⏞ = 40100=0.40C.I = 99%      =0.99Then, calculate αα = 1-0.99   =0.01Now,…

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

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Q: In a survey of 323 adults over 50, 60% said they were taking vitamin supplements. Find the margin of…

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Q: In a recent poll, 300 people were asked if they liked dogs, and 71% said they did. Find the Margin…

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Q: In a recent poll, 140 people were asked if they liked dogs, and 52% said they did. Find the Margin…

A: Given data, n=140 p=52%=0.52 z-value at 99% confidence is Zc=2.576   Margin of error(E)=?

Q: in a recent poll, 130 people were asked if they liked dogs, and 46% said they did. Find the Margin…

A: Introduction: The 100 (1 – α) % confidence interval for the population proportion, p is: Here, n is…

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

A: The sample size is 1072, 67% say they are willing to get a second or part-time job to pay for their…

Q: In a recent poll, 289 people were asked if they liked dogs, and 17% said they did. Find the margin…

A: Let X be the number of people who liked dogs Given: Number of people or sample size (n) = 289…

Q: A survey showed that 20.2% of the children that participated in the survey like flavor O If the…

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

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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 2286 ​adults, 745 say they believe in UFOs.   Construct a 90% confidence interval for…

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

Q: In a recent poll, 490 people were asked if they liked dogs, and 51% said they did. Find the Margin…

A: Given data,n=490p=51%=0.51z-value at 99% confidence is Zc=2.576E=?

Q: In a recent poll, 540 people were asked if they liked dogs, and 28% said they did. Find the Margin…

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Q: In a recent poll, 150 people were asked if they like dogs, and 40% said they did. Find the margin of…

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Q: In a recent poll, 390 people were asked if they liked dogs, and 33% said they did. Find the Margin…

A: Given p^=Sample proportion=0.33 n=sample size=390 Confidence interval = 99%

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

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Q: In a recent poll, 190 people were asked if they liked dogs, and 81% said they did. Find the Margin…

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