We wish to estimate what percent of adult residents in a certain county are parents. Out of 500 adult residents sampled, 305 had kids. Based on this, construct a 99% confidence interval for the proportion p of adult residents who are parents in this county. Express your answer in tri-inequality form. Give your answers as decimals, to three places.  < p <  Express the same answer using the point estimate and margin of error. Give your answers as decimals, to three places.

Q: We wish to estimate what percent of adult residents in a certain county are parents. Out of 400…

A: The objective of this question is to construct a 95% confidence interval for the proportion of adult…

Q: se the confidence interval to find the margin of error and the sample mean.   (0.656,0.800)…

A:

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 poll of 1060 adults in a country was conducted by telephone. Of those surveyed, 169 had…

A: The sample size is 1060 and number of success is 169.

Q: We wish to estimate what percent of adult residents in Ventura County like chocolate. Out of 500…

A: The sample proportion of the sample of size n can be defined as:  Here, X = Total number of success…

Q: those polled answered the economy. Construct a 93% confidence interval for the proportion of voters…

A: It is given that, the sample size, i..e, the sampled no. of voters, .The no. of voters, who answered…

Q: main, the

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Q: According to a recent survey of 1479 voters, 39% feel that the president is doing an acceptable job.…

A: A recent survey of 1479 voters are taken of which 39% feel the president is doing an acceptable job.…

Q: A researcher is interested to find out the proportion of registered nurses in Manitoba who are more…

A: Given that the sample of 89 from the records of members of Manitoba Nursing Association and she…

Q: We wish to estimate what percent of adult residents in a certain county are parents. Out of 400…

A: Solution: It is given here:

Q: In one city, 59.6% of the 1500 students surveyed said they eat at the school cafeteria. Find the 95%…

A: Given, Sample size=n=1500 p^=0.596 α=0.05

Q: Use the confidence interval to find the margin of error and the sample mean. (0.278,0.400) The…

A: We have given the confidence interval(0.278, 0.400)Lower limit = 0.278Upper limit = 0.400

Q: A poll of 1785 U.S. adults found that 900 U.S. adults, or 50.42% regularly used Facebook as a news…

A: Given that: Sample proportion, p^=0.5042 sample size (n) =900

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: A research group asked 4488 Americans how they fall asleep, and 536 of them fall asleep on their…

A: Obtain the 90% confidence interval for the percentage of all Americans who fall asleep on their…

Q: x=111, n=194, Confidence level = 99%

A: The sample proportion of p is, p^=xn=111194=0.5722 Computation of critical value:…

Q: BCD Travel wants to estimate the population proportion of adults who favor historical sites for…

A: p^ = 59% = 0.59Sample size = 24086% confidence level

Q: Use the confidence interval to find the estimated margin of error. Then find the sample mean. A…

A: Given, A biologist reports a confidence interval (1.7,2.9 ) of when estimating the mean height​ (in…

Q: A Polling agency wants to determine the percentage of waters in favour of extending tax cuts. they…

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Q: A researcher asks 600 people if they received a flu vaccine, and 65% said they did. What is the 95%…

A: From the provided information Sample size (n) = 600 65% said they received a flu vaccine that is…

Q: Kindly tell what is confidence interval in stats thanks.

A: An essential idea in statistics is a confidence interval (CI), which provides a range that, with a…

Q: To assess the proportion of the readers of a magazine being professional, a random sample of 1000…

A: Given that the random sample of 1000 readers is selected and 660 are found to be professionals. That…

Q: Convert the estimate and your confidence interval to Percents. Discuss reasons the estimate might be…

A: We have to convert the estimate and confidence interval into the percentage.

Q: 4. A researcher asks 600 people if they received a flu vaccine, and 65% said they did. What is the…

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Q: lution is incorrect since the  confidence level is 90% margin of error is 3%

A: Given: Confidence level = 0.90 Margin of error (E) = 0.03 Assumed sample proportion  p^     = 0.50

Q: Use the figure below to answer the questions that follow. The figure shows the results of a recent…

A: Given the results of a recent Marist poll asking about President Biden’s approval rating.

Q: A researcher wanted to estimate the proportion of undergraduate college students (18– 29 years) with…

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Q: The distances golf balls travel under laboratory testing conditions are normally distributed. The…

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Q: A poll showed that 385 out of 700 adults said they would be interested in traveling to outer space…

A: This question requires accurate results, Hence I will use excel to solve this question.…