Question

Which statistical test is appropriate for this scenario? A researcher tested 10 individuals who had seen...

Which statistical test is appropriate for this scenario? A researcher tested 10 individuals who had seen TV ads for a particular medication and another 9 individuals who had read an ad for the same medication in a magazine. All of these individuals took a multiple-choice test about the medication, which was scored as a percentage of correct answers. The researcher’s question was: Do people who see the ads on TV do better on this test compared to those who read the ads in a magazine?

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Answer #1

The most appropriate statistical test in this scenario will be:


We have to basically test whether the proportion of people who see the ads on TV do better on this test compared to the proportion of people who read the ads in a magazine. Z-test for two proportions is a hypothesis test that attempts to make a claim about the population proportions p1 and p2. Specifically, we are interested in assessing whether or not it is reasonable to claim that p1 = p2, which in this scenario is the proportion of people who see the ads on TV v/s proportion of people who read the ads in a magazine.

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