With data from the 2009 National Health Interview Survey, the Centers for Disease Control estimated that 9.4% of U.S. children had asthma. Suppose that 12% of a random sample of 500 U.S. poor children have asthma. We used the estimate from the 2009 National Health Interview Survey to calculate a standard error of 0.013. The data allows the use of a normal model. So we can find an approximate 95% confidence interval for the percentage of all U.S. poor children who have asthma. Which interval is the approximate 95% confidence interval?    1. 0.094 to 0.146   2. 0.107 to 0.133    3. 0.026 to 0.214   4. 0.068 to 0.12

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Q: 11.3.3

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Q: Controls 2.4 0.0 0.9 -0.2 1.0 1.7 2.9 -0.6 1.1 -0.1 0.3 1.2 -1.6 -0.1 -1.5 0.7 -0.4 2.2 -0.4 -0.4…

A: 1) The stem and leaf plot is Control   Breast-feeders   -8 3   -7 8,0   -6 8,8,5,5,2   -5…

Q: Construct a 99% confidence interval for the slope of the population regression line. Give your…

A: The least squares regression equation ŷ = 33.67 + 33.18x

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A: Here Given proportion of Us adults report that they live with one more chronic conditions=P¯=0.45…

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Q: "About 25 percent of college According to the website www.collegedrinkingprevention.gov, students…

A: sample size(n)=56Mean(x)=3.94standard deviation(s)=3.43confidence level=90%

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Q: 90% confidence interval is narrower than a 95% confidence interval using the exact same data.…

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A: Hence we are given that; x1=380, n1=1630x2=726, n2=2350 Hence the sample proportions are;…

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Q: Review: Based on the given Descriptive Statistics table, can you conclude that the data is normally…

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A: Solution: From the given information, a 99% confidence interval is 1.7 hours to 3.1 hours.

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Q: (b) Use a 99% confidence interval to estimate the mean percent change in the population. FILE O…

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Q: You are working as an assistant to the dean of institutional research at your university. The dean…

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Q: 17.18  4S overall mortality. The 4S study introduced in Exercise 17.17 also tallied deaths due to…

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Q: You are working as an assistant to the dean of institutional research at your university. The dean…

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Q: The data below are yields for two different types of corn seed that were used on adjacent plots of…

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A:

Q: Allen's hummingbird has been studied by zoologist Bill Alther. Suppose a small group of 15 Allen's…

A: Given,sample size(n)=15sample mean(x)=3.15standard deviation(σ)=0.22α=1-0.80=0.2α2=0.1Z0.1=1.2816