Description

Data on the burning time of samples of tobacco leaves

Usage

Format

A data frame with 30 observations on the following 4 variables.

nitrogen

nitrogen content by percentage weight

chlorine

chlorine content by percentage weight

potassium

potassium content by percentage weight

burntime

burn time in seconds

Source

Steel, R. G. D. and Torrie, J. H. (1980), Principles and Procedures of Statistics, Second Edition, New York: McGraw-Hill