Results from the National Health and Nutrition Examination Survey (NHANES) conducted thirty years ago revealed that out of 378 randomly selected adults in the United States 57 were considered to be obese. In this year’s National Health and Nutrition Examination Survey, out of 426 randomly selected adults in the United States 135 were considered to be obese. Use the results of the National Health and Nutrition Examination Survey and a 99% confidence interval to estimate the difference between the percentages of adults in the United States that are obese this year and thirty years ago. Express the estimate both symbolically and verbally.

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A: We have given that  Sample size n =60 Sample mean =12.88 99%confidence interval. (12.09,13.67)

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Q: knowing

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A: Solution: Let X be the number of people had kids and n be the sample number of people. From the…

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A: Given that, Of 127 randomly selected adults, 31 were found to have high blood pressure.  X = 31 N =…

Q: A poll of 827 students at Alpha state college found that 61% of those polled preferred a quarter…

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Q: In a poll, 1200 adults in a region were asked about their online vs. in-store clothes shopping. One…

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Q: 99% confidence interval for the proportion of the high school students who have been cyberbullied,…

A: Given that Sample size n = 14795 Number of high school students who have cyberbullied, X = 2219 The…

Q: In a recent year, a sample of the South American Redeye Piranha was collected by fishermen on a…

A: We have to interprete data.

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A: Given,n=1037x=643p^=xnp^=6431037=0.6201-p^=1-0.620=0.380α=1-0.99=0.01α2=0.005Z0.005=2.58    (from…

Q: A certain test preparation course is designed to help students improve their scores on the USMLE…

A: Given data isLet "x"denotes the given data setx={15,20,18,15,20,18}sample size(n)=6Step-1:- Mean(x)…

Q: A random variance survey of 495 adults found that 59 had diabetes. which of the following is a 98%…

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Q: packer produces 1,200 packages of ham per shift, how many packages should the Quality Control area…

A: To find the confidence level of 95%.

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Q: A recent study showed that among 725 randomly selected subjects who completed 4 years of college,…

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A: According to the given information in this question We need to construct 95% confidence interval

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Q: a 90 percent confidence interval for a population mean indicates that

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Q: The Harvard School of Public Health conducted a survey of 2770 adults in the United States to…

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Q: Insurance companies are interested in knowing the population percent of drivers who always buckle up…

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Q: A credit counseling agency wants to estimate the mean amount of credit card debt held by Americans.…

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Q: Insurance companies are interested in knowing the popul drivers who always buckle up before riding…

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Q: A survey showed 980 of 1500 adult respondents believe in global warming. Construct a 95% confidence…

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