TABLE 12-6
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 12-6,what is the form of the null hypothesis?

Question

TABLE 12-6
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 12-6,what is the form of the null hypothesis?

Quizplus · Accepted Answer

The null hypothesis typically states that there is no difference or effect, which in this context means all proportions are equal: π₁ = π₂ = π₃.

TABLE 12-6 According to an Article in Marketing News,fewer Checks Are Being