State bounds on the p-value for Exercise 10.67.
REFERENCE:
10.67 : Three different television commercials are advertising an established product. The commercials are shown separately to theater panels of consumers; each consumer views only one of the possible commercials and then states an opinion of the product. Opinions range from 1 (very favorable) to 5 (very unfavorable). The data are as follows.
a. Calculate expected frequencies under the null hypothesis of independence.
b. How many degrees of freedom are available for testing this hypothesis?
c. Is there evidence that the opinion distributions are different for the various commercials? Use α = .01.
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