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Given the estimated model above, for every additional cigarette smoked while pregnant, the associated change in birth weight is

Given the estimated model above, for every additional cigarette smoked while pregnant, the associated change in birth weight is

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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For questions 15-20, use the following regression output obtained by regressing birth weight (the y variable called birthwt) on the number of cigarettes smoked by women while pregnant (the x variable called cigs): SUMMARY OUTPUT Regression Stotistics Multiple R 0.151 R Square 0.023 Adjusted R Square 0.022 Standard Error 20.129 Observations 1,388 Coefficients Standard Error tStat P-value Lower 95% Upper 95% Intercept (bo) 119.77 0.57 209.27 0.003 118.65 120.89 cigs (b;) 0.09 -5.68 -0.34 -0.51 0.001 -0.69 Given the estimated model above, for every additional cigarette smoked while pregnant, the associated change in birth weight is O 119.77 ounces 0.57 ounces -5.68 ounces O -0.51 ounces
Transcribed Image Text:For questions 15-20, use the following regression output obtained by regressing birth weight (the y variable called birthwt) on the number of cigarettes smoked by women while pregnant (the x variable called cigs): SUMMARY OUTPUT Regression Stotistics Multiple R 0.151 R Square 0.023 Adjusted R Square 0.022 Standard Error 20.129 Observations 1,388 Coefficients Standard Error tStat P-value Lower 95% Upper 95% Intercept (bo) 119.77 0.57 209.27 0.003 118.65 120.89 cigs (b;) 0.09 -5.68 -0.34 -0.51 0.001 -0.69 Given the estimated model above, for every additional cigarette smoked while pregnant, the associated change in birth weight is O 119.77 ounces 0.57 ounces -5.68 ounces O -0.51 ounces
For questions 15-20, use the following regression output obtained by regressing birth weight (the y variable called birthwt) on the number of cigarettes smoked by women while pregnant (the x variable called cigs): SUMMARY OUTPUT Regression Statistics Multiple R 0.151 R Square 0.023 Adjusted R Square 0.022 Standard Error 20.129 Observations 1,388 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Intercept (bo) 119.77 0.57 209.27 0.003 118.65 120.89 cigs (b;) -0.51 0.09 -5.68 0.001 -0.69 -0.34 Using the above regression output, if the SSR (sum of squares due to the regression) is 13,060.42, what is the SST (total sum of squares)? 567,844.35 367,944.25 537,245.22 O 25,256.32
Transcribed Image Text:For questions 15-20, use the following regression output obtained by regressing birth weight (the y variable called birthwt) on the number of cigarettes smoked by women while pregnant (the x variable called cigs): SUMMARY OUTPUT Regression Statistics Multiple R 0.151 R Square 0.023 Adjusted R Square 0.022 Standard Error 20.129 Observations 1,388 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Intercept (bo) 119.77 0.57 209.27 0.003 118.65 120.89 cigs (b;) -0.51 0.09 -5.68 0.001 -0.69 -0.34 Using the above regression output, if the SSR (sum of squares due to the regression) is 13,060.42, what is the SST (total sum of squares)? 567,844.35 367,944.25 537,245.22 O 25,256.32
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