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In a study, 132 children of a certain race in a certain city were randomly assigned to one of two groups: one group enrolled in a preschool, and the other group did not. A research question was whether attendance at preschool had an effect on high school graduation. The accompanying table shows whether the students graduated from regular high school or not and includes both boys and girls. Find a 95% confidence interval for the difference in proportions, and interpret it. Click the icon to view the data. Step 1: Calculate percentages 42 Looking at children who went to preschool, 70 or 60.0%, graduated from high school. Looking at the children who did not go to preschool, what percent graduated from high school? % of children who did not go to preschool graduated from high school. (Round to one decimal place as needed.) Graduation Data Grad HS Preschool 42 No Preschool 24 No Grad HS 28 38 Print Done - X

In a study, 132 children of a certain race in a certain city were randomly assigned to one of two groups: one group enrolled in a preschool, and the other group did not. A research question was whether attendance at preschool had an effect on high school graduation. The accompanying table shows whether the students graduated from regular high school or not and includes both boys and girls. Find a 95% confidence interval for the difference in proportions, and interpret it. Click the icon to view the data. Step 1: Calculate percentages 42 Looking at children who went to preschool, 70 or 60.0%, graduated from high school. Looking at the children who did not go to preschool, what percent graduated from high school? % of children who did not go to preschool graduated from high school. (Round to one decimal place as needed.) Graduation Data Grad HS Preschool 42 No Preschool 24 No Grad HS 28 38 Print Done - X

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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In a study, 132 children of a certain race in a certain city were randomly assigned to one of two groups: one group enrolled in a preschool, and the other group did not. A research question was whether attendance at preschool had an effect on high school graduation. The accompanying table shows whether the students graduated from regular high school or not and includes both boys and girls. Find a 95% confidence interval for the difference in proportions, and interpret it. Click the icon to view the data. Step 1: Calculate percentages 42 Looking at children who went to preschool, 70 or 60.0%, graduated from high school. Looking at the children who did not go to preschool, what percent graduated from high school? % of children who did not go to preschool graduated from high school. (Round to one decimal place as needed.) Graduation Data Grad HS Preschool 42 No Preschool 24 No Grad HS 28 38 Print Done - X
Transcribed Image Text:In a study, 132 children of a certain race in a certain city were randomly assigned to one of two groups: one group enrolled in a preschool, and the other group did not. A research question was whether attendance at preschool had an effect on high school graduation. The accompanying table shows whether the students graduated from regular high school or not and includes both boys and girls. Find a 95% confidence interval for the difference in proportions, and interpret it. Click the icon to view the data. Step 1: Calculate percentages 42 Looking at children who went to preschool, 70 or 60.0%, graduated from high school. Looking at the children who did not go to preschool, what percent graduated from high school? % of children who did not go to preschool graduated from high school. (Round to one decimal place as needed.) Graduation Data Grad HS Preschool 42 No Preschool 24 No Grad HS 28 38 Print Done - X
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