TABLE 11-6 According to an Article in Marketing News, Fewer Checks Are

TABLE 11-6
According to an article in Marketing News, fewer checks are being written at the grocery store checkout than in the past. To determine whether there is a difference in the proportion of shoppers who pay by check among three consecutive years at a 0.05 level of significance, the results of a survey of 500 shoppers in three consecutive years are obtained and presented below.

-Referring to Table 11-6, what is the correct conclusion?

A) There is enough evidence that the proportions are all different in the three years.
B) There is not enough evidence that the proportions are all different in the three years.
C) There is enough evidence that at least two of the proportions are not equal.
D) There is not enough evidence that at least two of the proportions are not equal.

Correct Answer:

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