Suppose 250 randomly selected people are surveyed to determine if they own a tablet. Of the 250 surveyed 98 reported owing a tablet. Using a 95% confidence level, compute interval estimate for the true proportion of people who own tablets. (Use step by step)

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Q: What sample size is needed if a researcher needed to calculate the true proportion of individuals…

A: HERE , MOE  = 0.01 confidence level = 95% here z-critical for 95% confidence level = 1.96 here use…

Q: In a survey of 3005 adults aged 57 through 85 years, it was found that 81.7% of them used at least…

A: Given :  n = 3005 p̂=0.817

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

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A: Given,sample proportion(p^)=0.73margin of error(E)=0.03α=1-0.95=0.05α2=0.025Z0.025=1.96       (from…

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Q: If n=510 and ˆpp^ (p-hat) =0.19, find the margin of error at a 90% confidence level Give your…

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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: A university dean is interested in determining the proportion of students who receive some financial…

A: The point estimate=p^=118200=0.59n=sample size= 200z=critical value of 95% confidence…

Q: Out of 600 people sampled, 510 had kids. The best point estimate for p is The margin of error for a…

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Q: Out of 600 people sampled, 312 had kids. Based on this, construct a 95% confidence interval for the…

A: In question,  Given that Out of 600 people sampled, 312 had kids. Then we'll construct the 95%…

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

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

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Q: In your sample of 200 individuals, 10 people identified as bisexual. What is the true proportion of…

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Q: According to a survey conducted by Pew Research Center in June 2009, 44% of people aged 18 to 29…

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Q: A vet wants to determine the proportion of household pets that have pet insurance. What size sample…

A: Given that  Margin of error=E=0.06 ,  90% confidence

Q: A quality controller wants to estimate the proportion of high quaity goods out of a batch of…

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Q: Find the margin of error that corresponds to a sample of size 210 with 70% successes at a confidence…

A: Sample size is 210. Percentage of successes is 70%. Percentage of confidence level is 90%.

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

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

A: Solution: Let X be the number of adults in the town who have health insurance and n be the sample…

Q: To determine the proportion of Americans who support affirmative action policies for minorities and…

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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: A university dean is interested in determining the proportion of students who receive some sort of…

A: Given that, X = 118 N = 200 99% confidence level

Q: Of the 998 respondents questioned, 246 identified themselves as Catholic.  Calculate a 95%…

A: Given,X=246n=998p^=Xnp^=246998=0.24651-p^=1-0.2465=0.7535α=1-0.95=0.05α2=0.025Z0.025=1.96   (from…

Q: If n = 520 and X = 416, construct a 99% confidence interval for the population proportion, p. Give…

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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: In a survey of 2291 ​adults, 708 say they believe in UFOs.   Construct a 90% confidence interval for…

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Q: A survey of 2500 teen-agers noted that 60% of them are extensive internet users. With 90% confidence…

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

A: Find z-critical value:…

Q: In a survey of 2383 U.S adults 1073 think there should be more government regulations.  Find the…

A: Solution: Let X be number of U.S adults think there should be more government regulations and n be…

Q: Suppose a marketing company randomly surveyed 439 households and found that in 259 of them, the…

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Q: if n=320 and p^ (p-hat)=0.72, find the margin of error at 90% confidence level

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

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Q: Out of 600 people sampled, 402 had kids. Based on this, construct a 95% confidence interval for the…

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Q: An educator wants to construct a 99% confidence interval for the proportion of elementary school…

A: The random variable is elementary school children in Michigan who are proficient in reading. It…

Q: A transportation planner wishes to estimate the proportion of commuters who drive to work within…

A: The provided information are: Margin of error (E) = 0.05 Confidence level = 90%

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

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Q: Of 380 randomly selected medical students, 21 said that they planned to work in a rural community.…

A: (a) From the Standard Normal Table, the z value for 99% level is 2.576. The sample proportion is,…

Q: 8. Five hundred randomly selected adult residents in Pasig City were surveyed to determine whether…

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Q: A researcher wishes to estimate the 95% confidence interval of the proportion of students who show…

A: Given  e=Margin of error=30%=0.30,  p^=30%=0.30, level of significance ɑ=0.05

Q: When 258 college students are randomly selected and surveyed, it is found that 106 own a car. Find a…

A: The provided information is: It is given that 106 college students (s) own a car among 258 college…

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

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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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A: Given that,  x=192,n=600 The sample proportion is, Critical values: By using the standard normal…

Q: suppose that in sampling for the population proportion, it is found that 20 out of 100 items are…

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Q: In a survey of 2273 ​adults, 728 say they believe in UFOs.   Construct a 99% confidence interval for…

A: Given Information: Sample size (n) = 2273 Out of which X = 728 adults say they believe in UFOs. To…