SCENARIO 10-8 a Few Years Ago, Pepsi Invited Consumers to Take

question 143

Multiple Choice

SCENARIO 10-8 A few years ago, Pepsi invited consumers to take the "Pepsi Challenge." Consumers were asked to decide which of two sodas, Coke or Pepsi, they preferred in a blind taste test.Pepsi was interested in determining what factors played a role in people's taste preferences.One of the factors studied was the gender of the consumer.Below are the results of analyses comparing the taste preferences of men and women with the proportions depicting preference for Pepsi.
-Referring to Scenario 10-8, suppose that the two-tail p-value was really 0.0734.State the proper conclusion.

• A)At = 0.05, there is sufficient evidence to indicate the proportion of males preferring Pepsi differs from the proportion of females preferring Pepsi.
• B)At = 0.10, there is sufficient evidence to indicate the proportion of males preferring Pepsi differs from the proportion of females preferring Pepsi.
• C)At = 0.05, there is sufficient evidence to indicate the proportion of males preferring Pepsi equals the proportion of females preferring Pepsi.
• D)At = 0.08, there is insufficient evidence to indicate the proportion of males preferring Pepsi differs from the proportion of females preferring Pepsi.

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Definitions:

Double-blind Procedure

A research method in which neither the participants nor the experimenters know who is receiving a particular treatment, to prevent bias.

Experimenter Bias

Experimenter bias is a form of bias that occurs when a researcher's expectations or preferences about the outcome of a study influence the results.

Placebo Control Group

A group of participants in a study who receive a sham treatment, allowing for the comparison of the actual intervention’s effectiveness.

Socially Desirable

Pertains to behaviors or responses that are seen as favorable by society and are thus more likely to be expressed by individuals.