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Solving Linear Regression Problems

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Refer to the Schools data, which includes information on the 94 school districts in northwestern Ohio. Let the independent variable be the percent of families on welfare in the school district and the number of students in the district be the dependent variable.
1. Determine the regression equation. Comment on the values you found for the slope and the intercept. Are they reasonable?
2. Estimate the number of students in a school district in which 10% of the families are on welfare.
3. Develop a 95 percent confidence interval and a 95% prediction interval for all schools that have 10 percent of families on welfare.

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This solution helps solve linear regression problems.

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