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Do social recommendations increase ad​ effectiveness? A study of online video viewers compared viewers who arrived...

Do social recommendations increase ad​ effectiveness? A study of online video viewers compared viewers who arrived at an advertising video for a particular brand by following a social media recommendation link to viewers who arrived at the same video by web browsing. Data were collected on whether the viewer could correctly recall the brand being advertised after seeing the video. The results are given below.

_ Yes No _
Recommendation 413 145 *

.Browsing 207 82 *

Conduct the hypothesis test defined in​ (a), using the 0.025 level of significance. What is the value of the test statistic?

Math   Statistics-And-Probability   
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