Nicotine {BSDA}

Nicotine content versus sales for eight major brands of cigarettes

Description

Data for Exercise 9.21

Usage

Nicotine

Format

A data frame/tibble with eight observations on two variables

nicotine

nicotine content (in milligrams)

sales

sales figures (in $100,000)

References

Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.

Examples

model <- lm(sales ~ nicotine, data = Nicotine)
plot(sales ~ nicotine, data = Nicotine)
abline(model, col = "red")
summary(model)
predict(model, newdata = data.frame(nicotine = 1), 
        interval = "confidence", level = 0.99)