Construct a confidence interval for p 1 minus p 2 at the given level of confidence. x 1 equals 358, n 1 equals 518, x 2 equals 419, n 2 equals 571, 95% confidence
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A: Solution:- from given information
Construct a confidence interval for p 1 minus p 2 at the given level of confidence. x 1 equals 358, n 1 equals 518, x 2 equals 419, n 2 equals 571, 95% confidence
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- Construct a confidence interval for p1−p2 at the given level of confidence. x1=368, n1=523, x2=441, n2=593, 95% confidence The researchers are nothing% confident the difference between the two population proportions, p1−p2, is between nothing and nothing.A random sample of 212 high school students in a particular town showed that 56 smoke on a regular basis. Find the 95% confidence interval estimating the population percentage for smokers at this high school. Suppose the national average for smokers in high schools is 34.2%. Does it appear that the students in this particular town smoke less than the national average? Justify your answerSuppose that you wanted to know if the percentage of people who will attend a sporting event this year will decrease. Last year, 43% of Americans attended a sporting event. After taking a sample, you attain a sample percentage of 18% with a margin of error of 3%. Construct a confidence interval and use that interval to determine if the number of Americans who will attend a sporting event has decreased. Show your calculation for the interval and then state your conclusion in complete sentences.
- Construct a confidence interval for p, - p2 at the given level of confidence. X1 = 35, n, = 254, x2 = 31, n2 = 300, 90% confidence %3D ... The researchers are % confident the difference between the two population proportions, p, - P2, is between and (Use ascending order. Type an integer or decimal rounded to three decimal places as needed.)Construct a confidence interval for P₁ P2 at the given level of confidence. x₁ = 391, n₁ =529, x₂ = 421, n₂ = 577, 90% confidence The researchers are % confident the difference between the two population proportions, p₁ - P2, is between and (Use ascending order. Type an integer or decimal rounded to three decimal places as needed.)A clinic measured the systolic blood pressure for a random sample of 10 patients. The resulting 95% confidence interval for the mean systolic blood pressure of all the patients at this clinic was (111.3, 129.5). What was the mean systolic blood pressure from the sample of 10 patients? 18.2 111.3 120.4 129.5
- In a sample of 300 adults, 198 had children. Construct a 90% confidence interval for the true population proportion of adults with children. Give your answers as decimals, to three places RectanIn a sample of 360 adults, 266 had children. Construct a 95% confidence interval for the true population proportion of adults with children. Give your answers as decimals, to three placesA confidence interval on p is (.356, .418). What are p-hat and the margin of error?SEE MORE QUESTIONSRecommended textbooks for youMATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons Inc
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