A Few Years Ago, Pepsi Invited Consumers to Take the "Pepsi

question 81

Multiple Choice

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
Interesting in determining what factors played a role in people's taste preferences.One of the
Factors studied was the gender of the consumer.Data on the percentage of men and women
Depicting preference for Pepsi were collected.Which of the following tests will you use to find
Out if there is any difference in preference between the different gender groups?

• A) Kruskal-Wallis rank Test.
• B) Paired t test.
• C) Z test for difference in proportions.
• D) Wilcoxon rank sum test.

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Definitions:

Sodium Sulfate

An inorganic salt used in detergents, paper manufacturing, and glass production, known chemically as Na2SO4.

Atoms

Atoms are the basic units of matter and the defining structure of elements, consisting of a nucleus surrounded by electrons, and classified by the number of protons they contain.

Washing Detergent

A chemical substance used to break up and remove dirt and grease from fabrics, commonly in the form of powder or liquid.

Calcium Nitrate

An inorganic compound used as a nitrogen fertilizer in agriculture and also in waste water pre-conditioning for odor emission prevention.