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

question 75

Essay

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, the lowest level of significance at which the null hypothesis can be rejected is ________.

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Definitions:

Withdrawal

The process of reducing or stopping the use of a substance after prolonged and frequent use, often leading to uncomfortable symptoms.

Heroin

An opioid drug made from morphine, a natural substance taken from the seed pod of various opium poppy plants, known for its addictive properties.

Craving

An intense, urgent, or abnormal desire or longing, especially for a substance or activity that can lead to addictive behavior.

Endorphins

Natural, pain-relieving chemicals produced by the body that also contribute to feelings of pleasure and well-being.