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

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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.
 Year  Check Written  Year 1  Year 2 Year 3  Yes 225175125 No 275325375\begin{array}{l}\text { \quad\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 { Year 3 } \\\hline \text { Yes } & 225 & 175 & 125 \\\text { No } & 275 & 325 & 375\end{array}\end{array}
-Referring to Table 12-13, what is the expected number of shoppers who pay by check in year 1 if there is no difference in the proportion of shoppers who pay by check among the three years?

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Definitions:

Technical Analyst

A finance professional who evaluates investments and identifies trading opportunities by analyzing statistical trends gathered from trading activity.

Price Range

The difference between the highest and lowest selling prices of a good or service in a specific time period, indicative of market volatility or stability.

Mutual-Fund Performance

An assessment of how a mutual fund has achieved its investment objective over a set period, typically measured by changes in net asset value and investment returns.

Market Returns

The total return, including capital gains and dividends, from investing in financial markets over a specified period.

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