Chapter 5 An Introduction to the Power of Tests and Design of Experiments

Example 5.1 Two groups of soys bean plants that are exposed to two levels of stress. The response is total area of the leaves. Example 5.2 The same data as in Example 5.1, but with the extra information that the plants were genetically identical in pairs. The data are used to illustrate the paired t-test. Exercise 5.1 Theoretical exercise. No data. Exercise 5.2 Theoretical exercise. No data. Exercise 5.3 A manufacturer of plastics wanted to investigate how suitable two types, A and B, would be for soles on sports shoes.