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Figure 9.1 Confounding: we can’t distinguish the effects of drinking habits from the effects of overall diet and lifestyle. Figure 9.2 The treatments in the experimental design of Example 9.3. Combinations of values of the two factors form six treatments.
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Figure 9.1 Confounding: we can’t distinguish the effects of drinking habits from the effects of overall diet and lifestyle.
Figure 9.2 The treatments in the experimental design of Example 9.3. Combinations of values of the two factors form six treatments.
Figure 9.3 Outline of a randomized comparative experiment to compare online and classroom instruction, for Example 9.5.
Figure 9.4 Outline of a completely randomized design comparing three energy-saving programs, for Example 9.6.
Figure 9.5 Outline of a block design, for Example 9.10. The blocks consist of male and female subjects. Thetreatments are three advertisements for the same product.