Question

Two proposed advertising campaign themes for a new product are being evaluated. A random sample of 100 consumers is exposed to theme A and another sample of 100 consumers is exposed to theme B. At the conclusion of the study participants in each sample are asked whether they have a positive opinion of the product. Seventy eight of the theme A participants said yes, while 64 of the theme B participants said yes.
a. Build a 90% confidence interval estimate of the difference in the proportion of consumers in the two populations represented who would say that they had a positive opinion of the product.
b. What are the two populations represented here?


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  • CreatedJuly 16, 2015
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