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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 alternative hypothesis for this study.
Doha Amendment
An amendment to the Kyoto Protocol that includes new carbon emission reduction commitments for participating countries and was adopted in Doha, Qatar.
Kyoto Protocol
An international agreement linked to the United Nations Framework Convention on Climate Change that commits its parties to reduce greenhouse gas emissions, based on the scientific consensus that global warming is occurring and that human-made CO2 emissions are significant contributors.
Ratified
Formally approved or confirmed, often referring to the process by which legislation or constitutional amendments become valid.
Clean Air Act
A United States federal law designed to control air pollution on a national level, aiming to protect and improve the nation's air quality and the stratospheric ozone layer.
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