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local school board claims that there is a difference in the proportions of households with school-aged children nat would support starting the school year a week earlier, and the proportion of households without school-aged hildren that would support starting the school year a week earlier. They survey a random sample of 40 households with school-aged children about whether they would support starting the school year a week earlier, and 30 mouseholds respond yes. They survey a random sample of 45 households that do not have school-aged children, und 25 respond yes. Based on the 90% confidence interval, (0.03, 0.36), is there convincing evidence of a difference in the true proportions of households, those with school-aged children and those without school-aged children, who would support starting school early? O There is convincing evidence because the two sample proportions are different. O There is convincing evidence because the entire interval is above 0. O There is not convincing evidence because if another interval with a higher confidence level is calculated, it migh contain 0. There is not convincing evidence because two different sample sizes were used. In order to determine a difference, the same number of households should be selected from each population. Next Submit Save and Exit Mark this and return

local school board claims that there is a difference in the proportions of households with school-aged children nat would support starting the school year a week earlier, and the proportion of households without school-aged hildren that would support starting the school year a week earlier. They survey a random sample of 40 households with school-aged children about whether they would support starting the school year a week earlier, and 30 mouseholds respond yes. They survey a random sample of 45 households that do not have school-aged children, und 25 respond yes. Based on the 90% confidence interval, (0.03, 0.36), is there convincing evidence of a difference in the true proportions of households, those with school-aged children and those without school-aged children, who would support starting school early? O There is convincing evidence because the two sample proportions are different. O There is convincing evidence because the entire interval is above 0. O There is not convincing evidence because if another interval with a higher confidence level is calculated, it migh contain 0. There is not convincing evidence because two different sample sizes were used. In order to determine a difference, the same number of households should be selected from each population. Next Submit Save and Exit Mark this and return

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A local school board claims that there is a difference in the proportions of households with school-aged children that would support starting the school year a week earlier, and the proportion of households without school-aged children that would support starting the school year a week earlier. They survey a random sample of 40 households with school-aged children about whether they would support starting the school year a week earlier, and 30 households respond yes. They survey a random sample of 45 households that do not have school-aged children, and 25 respond yes. Based on the 90% confidence interval, (0.03, 0.36), is there convincing evidence of a difference in the true proportions of households, those with school-aged children and those without school-aged children, who would support starting school early? There is convincing evidence because the two sample proportions are different. There is convincing evidence because the entire interval is above 0. There is not convincing evidence because if another interval with a higher confidence level is calculated, it might contain 0. There is not convincing evidence because two different sample sizes were used. In order to determine a difference, the same number of households should be selected from each population. Next Submit Save and Exit Mark this and return
Transcribed Image Text:A local school board claims that there is a difference in the proportions of households with school-aged children that would support starting the school year a week earlier, and the proportion of households without school-aged children that would support starting the school year a week earlier. They survey a random sample of 40 households with school-aged children about whether they would support starting the school year a week earlier, and 30 households respond yes. They survey a random sample of 45 households that do not have school-aged children, and 25 respond yes. Based on the 90% confidence interval, (0.03, 0.36), is there convincing evidence of a difference in the true proportions of households, those with school-aged children and those without school-aged children, who would support starting school early? There is convincing evidence because the two sample proportions are different. There is convincing evidence because the entire interval is above 0. There is not convincing evidence because if another interval with a higher confidence level is calculated, it might contain 0. There is not convincing evidence because two different sample sizes were used. In order to determine a difference, the same number of households should be selected from each population. Next Submit Save and Exit Mark this and return
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