28. Last cigarette Here is the regressioln nicotine content of the cigarettes in Exercise 26 öf tar and Dependent variable is: nicotine Variable Coefficient Constant 0.154030 Tar 0.065052 a) Write the equation of the regression line. b) Estimate the Nicotine content of cigarettes with 4 milligrams of Tar. c) Interpret the meaning of the slope of the regression line in this context. d) What does the y-intercept mean? e) If a new brand of cigarette contains 7 milligrams of tar and a nicotine level whose residual is -0.5 mg, what is the nicotine content? P. Last inning 2013 II

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