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( > learn-us-east-1-prod-fleet02-xythos.content.blackboardcdn.com Home - University of La Verne Content https://learn-us-east-1-prod-fleet02... Homework Help - Q&A from Online T... Untitled document - Google Docs lofi hip
( > learn-us-east-1-prod-fleet02-xythos.content.blackboardcdn.com Home - University of La Verne Content https://learn-us-east-1-prod-fleet02... Homework Help - Q&A from Online T... Untitled document - Google Docs lofi hip hop radio - beats to relax/... (15 points) Q8. A researcher is interested in determining whether there is a relationship between number of packs of cigarettes smoked per day and longevity (in years). Please look at the output of regression below and give short answers the following questions Regression Statistics Multiple R 0.875178878 R Square 0.765938069 Adjusted R Square 0.736680328 Standard Error 3.802137557 Observations 10 ANOVA if SS MS F Significance F Regression 378.45 378.45 26.17898833 0.00091 1066 Residual Co 1 15.65 14.45625 Total 494.1 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Intercept 75.4 2.082516507 36.20619561 3.71058E-10 70.59770522 80.20229478 X Variable 1 -4.35 0.850183804 -5.11654066 0.000911066 6.310528635 -2.389471365 a. Is this regression significant? Why? b. What is the coefficient of correlation? Interpret the coefficient of correlation c. What is the coefficient of determination? What can you say about the relationship between two variables? d. What is the regression equation?learn-us-east-1-prod-fleet02-xythos.content.blackboardcdn.com () C Home - University of La Verne Content https://learn-us-east-1-prod-fleet02... Homework Help - Q&A from Online T... Untitled document - Google Docs lofi hip hop radio - beats to relax/... Page | 16 e. What is the Y-intercept of the linear equation and Interpret the Y-intercept of the linear equation f. Interpret the slope of the linear equation g. What is the test-statistic to test the significance of the slope? What is your conclusion? (5% significance level) h. What is the test-statistic to test the significance of the coefficient of correlation? What is your conclusion? (5% significance level) i. How long will one live who smokes 2.5 packs per day
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