TABLE 12-13
According to an Article in Marketing News, Fewer

question 136

Short Answer

TABLE 12-13
According to an article in Marketing News, fewer checks are being written at grocery store checkout stands 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.
$$\begin{array}{l}\text {\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad Year }\\\begin{array} { c | c | c | c } \text { Check Written } & \text { Year 1 } & \text { Year 2 } & \text { par 3 } \\\hline \text { Yes } & 225 & 175 & 125 \\\text { No } & 275 & 325 & 375\end{array}\end{array}$$
-Referring to Table 12-13, what are the degrees of freedom of the test statistic?

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Definitions:

Articles Of Incorporation

Official papers submitted to a government agency to formally register the establishment of a corporation.

Independent Contractor

A person who is hired to perform a specific undertaking but who is free to choose how and when to perform the work. An independent contractor may or may not be an agent.

Employee

An individual who is hired to perform services or duties for an employer under the terms of a contract of employment.

Retail Florist

A business specializing in selling cut flowers, arrangements, and other plant-related products directly to consumers.