Question: 33. Last cigarette Take another look at the regression analysis of tar and nicotine content of the cigarettes in Exercise 29. a) Write the equation

33. Last cigarette Take another look at the regression analysis of tar and nicotine content of the cigarettes in Exercise 29.

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 with a residual of −0.5 mg, what is the nicotine content?

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