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Do social recommendations increase ad? effectiveness

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Reference no: EM131997004

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. Complete parts? (a) through? (c) below.

Correctly Recalled the Brand

Arrival Method Yes No

Recommendation 404 159

Browsing 189 100

b. Conduct the hypothesis test defined in? (a), using the 0.025 level of significance.

What is the value of the test? statistic?

χ2STAT=

?(Round to two decimal places as? needed.)

What is the? p-value=

(Round to three decimal places as? needed.)

Is this value significant at α=0.025??

A.No?, because the? p-value is greater than or equal to greater than or equal to the alpha level.? Therefore, the null hypothesis should be rejected.

B.Yes?, because the? p-value is less than the alpha level.? Therefore, the null hypothesis should not be rejected.

C.Yes?, because the? p-value is less than the alpha level.? Therefore, the null hypothesis should be rejected.

D.No?, because the? p-value is greater than or equal to the alpha level.? Therefore, the null hypothesis should not be rejected.

Reference no: EM131997004

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