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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 associated with the shape of the logo.
Ureters
Muscular tubes that transport urine from the kidneys to the bladder, playing a critical role in the urinary system.
Uric Acid
A chemical created when the body breaks down substances called purines, high levels of which can lead to gout and other health problems.
Waste Products
Materials or substances that are no longer useful or desired and are intended to be discarded.
Metabolic Wastes
Substances left over from metabolic processes, such as carbon dioxide, water, and nitrogenous compounds, that need to be excreted from the body.
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