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

question 105

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 1 and year 3 using a 0.05 level of significance?

---

Definitions:

Economic Question

A query that seeks to understand how scarce resources are allocated, such as what to produce, how to produce it, and for whom to produce.

Milking Machines

Mechanical devices designed to extract milk from animals, significantly improving efficiency and hygiene in dairy farming.

Shift AA to BA

Moving from one economic point or position (AA) to another (BA), indicating a change in an economic condition or policy impact.

Technological Improvement

The innovation or development of new techniques, methods, or devices that increase productivity and efficiency in processes or products.