as covariates. The dataset is called 'cigarette.csv' on Avenue to Learn. (a) Calculate the least squares regression line for the model of interest. Be sure to define any variables you introduce. (b) Calculate a 99% confidence interval for B2 (C) Use the model to estimate the average cigarette sales for a median age of 30 and an average cigarette pack price of $38.Calculate the corresponding 95% confidence interval. (d) Use the model to predict the cigarette sales per capita corresponding to a new state with a median age of 30 and average cigarette pack price of $38. Calculate the corresponding 95% prediction interval.

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