Shear measured in kN on frozen carrots from four randomly selected freezers

Format

A data frame with 16 observations on the following 2 variables:

shear

carrot shear measured in kN

freezer

a factor with levels A, B, C, and D

Source

Ugarte, M. D., Militino, A. F., and Arnholt, A. T. (2008) Probability and Statistics with R. Chapman & Hall/CRC.

Examples

summary(aov(shear ~ freezer, data = food))
#> Df Sum Sq Mean Sq F value Pr(>F) #> freezer 3 0.03567 0.011892 15.68 0.000188 *** #> Residuals 12 0.00910 0.000758 #> --- #> Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1