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

question 146

Short Answer

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 value of the critical range for the Marascuilo procedure to test for the difference in proportions between year 2 and year 3 using a 0.05 level of significance?

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Definitions:

Field

The component of a database in which the database stores each category of information.

Multidimensional Database

A database that stores data from different perspectives, called dimensions, and organizes data in cube format.

Cube

A three-dimensional geometric figure with six square faces, all of equal size, and eight vertices.

Consistency Check

In a database, compares the values of data in two or more fields to see if those values are reasonable.