A chemical engineer wants to compare the hardness of four blends of paint. Six samples of each paint blend were applied to a piece of metal, which was then cured. Then each sample was measured for hardness.
You can use this data to demonstrate One-Way ANOVA, Display Descriptive Statistics, and other analyses that compare group statistics.
|Worksheet column||Description||Variable type|
|Paint||The blend of paint tested: Blend 1, Blend 2, Blend 3, or Blend 4||Factor|
|Hardness||The hardness of each sample||Response|
|Temp||The curing temperature of the sample||Covariate|
|Operator||The operator who collected the sample: 1, 2, or 3||Factor|