Description

Data on the cut-off times of lawnmowers was collected. 3 machines were randomly selected from those produced by manufacturers A and B. Each machine was tested twice at low speed and high speed.

Usage

Format

A data frame with 24 observations on the following 4 variables.

manufact

Manufacturer - a factor with levels A B

machine

Lawn mower - a factor with levels m1 m2 m3 m4 m5 m6

speed

Speed of testing - a factor with levels H L

time

cut-off time

Source

Unknown.