day23 - Inferences about the Differences between Two...

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Unformatted text preview: Inferences about the Differences between Two Population Means: Matched Samples Example : Advertisements generally push a product or at least mention a companys name, but Nikes ads often do neither. Instead, they demonstrate a passion for sport. These ads are credited with promoting Nikes tremendous corporate success. Suppose two ads are available for study: ad A promotes a particular product and ad B professes passion for sports. Suppose that 10 people are selected to view and rate the ads. We would like to determine if the rating for the ad professing passion for sports is, on average, higher than that for ads promoting a product or company. Independent sample design: Suppose that half of the people selected view and rate ad A while the other half view and rate ad B. To analyze this data we would use the methods from section 10.2. Matched sample design: Suppose that each of the 10 people selected view and rate both ads....
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day23 - Inferences about the Differences between Two...

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