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TABLE 9-7 A Major Home Improvement Store Conducted Its Biggest Brand Recognition

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TABLE 9-7
A major home improvement store conducted its biggest brand recognition campaign in the company's history. A series of new television advertisements featuring well-known entertainers and sports figures was launched. A key metric for the success of television advertisements is the proportion of viewers who "like the ads a lot." A study of 1,189 adults who viewed the ads reported that 230 indicated that they "like the ads a lot." The percentage of a typical television advertisement receiving the "like the ads a lot" score is believed to be 22%. Company officials wanted to know if there is evidence that the series of television advertisements are less successful than the typical ad (i.e. if there is evidence that the population proportion of "like the ads a lot" for the company's ads is less than 0.22) at a 0.01 level of significance.
-Referring to Table 9-7, state the null hypothesis for this study.


Definitions:

Net Social Gain

The overall benefit to society, created when the total value generated by an action exceeds the total costs associated with it.

Rent-Seeking Activities

Practices of gaining economic benefits without contributing to productivity, typically through manipulation of the political environment.

Monopoly Power

The exclusive control by one company over an entire industry or market, allowing it to dictate terms and prices without competition.

Welfare Loss

This refers to the decrease in economic efficiency that occurs when the equilibrium for a good or service is not achieved or is distorted by external intervention, leading to a loss of social surplus.

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