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TABLE 11-12
The marketing manager of a company producing a new cereal aimed for children wants to examine the effect of the color and shape of the box's logo on the approval rating of the cereal. He combined 4 colors and 3 shapes to produce a total of 12 designs. Each logo was presented to 2 different groups (a total of 24 groups) and the approval rating for each was recorded and is shown below. The manager analyzed these data using the α = 0.05 level of significance for all inferences.
Analysis of Variance
Source df SS MS F p
Colors 3 2711.17 903.72 72.30 0.000
Shapes 2 579.00 289.50 23.16 0.000
Interaction 6 150.33 25.06 2.00 0.144
Error 12 150.00 12.50
Total 23 3590.50
-Referring to Table 11-12, based on the results of the hypothesis test, it appears that there is a significant effect on the approval rating associated with the color of the logo.
Vertebrate Eye
The complex optical system found in vertebrates, composed of structures such as the lens, retina, and optic nerve, enabling vision.
Eye Lens
A transparent structure in the eye that focuses light on the retina, enabling vision.
Tissue Folds
Refers to the complex structures formed by layers of biological tissues that can increase surface area or serve various functions in organs.
Garter Snake
A common name for a genus of snakes known as Thamnophis, marked by their distinct longitudinal stripes.
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