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

question 49

Multiple Choice

TABLE 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.
Males: n = 109, pM = 0.422018 Females: n = 52, pF = 0.25
pM - pF = 0.172018 Z = 2.11825
-Referring to Table 10-8, to determine if a difference exists in the taste preferences of men and women, give the correct alternative hypothesis that Pepsi would test.

• A) H₁: μM - μF ≠ 0
• B) H₁: μM - μF > 0
• C) H₁: πM - πF ≠ 0
• D) H₁: πM - πF = 0

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Definitions:

Phenylketonuria

Phenylketonuria (PKU) is a genetic disorder resulting from the body's inability to process part of a protein called phenylalanine, which can lead to intellectual disabilities if untreated.

L-DOPA

A precursor to dopamine used in the treatment of Parkinson's disease and dopamine-responsive dystonias.

Parkinson's Disease

A progressive neurological disorder that affects movement, causing symptoms such as tremors, stiffness, and slow movement.

PKU

Phenylketonuria, a genetic disorder leading to the inability to metabolize phenylalanine, which can cause brain damage if not treated with a special diet from birth.