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.
data(lawn)A data frame with 24 observations on the following 4 variables.
manufactManufacturer - a factor with levels A B
machineLawn mower - a factor with levels m1 m2 m3 m4 m5 m6
speedSpeed of testing - a factor with levels H L
timecut-off time