A Survey Was Recently Conducted in Which Random Samples of Car

question 75

Multiple Choice

A survey was recently conducted in which random samples of car owners of Chrysler, GM, and Ford cars were surveyed to determine their satisfaction. Each owner was asked to rate overall satisfaction on a scale of 1 (poor) to 1000 (excellent) . The following data were recorded: If the analysts are not willing to assume that the population ratings are normally distributed and will use the Kruskal-Wallis test to determine if the three companies have different median ratings, what is the correct conclusion if the test is to be conducted using an alpha = .05 level?

• A) H0 should be rejected and we conclude that there is no significant difference between the 3 companies.
• B) H0 should not be rejected and we conclude that there is no significant difference between the 3 companies.
• C) H0 should be rejected and we conclude that there is a significant difference between the 3 companies.
• D) H0 should not be rejected and we conclude that there is a significant difference between the 3 companies.

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Definitions:

Prefrontal Cortex

A region of the frontal lobes of the brain implicated in a variety of complex behaviors, including planning, decision-making, and moderating social behavior.

Dorsal Amygdala

The section of the amygdala responsible for maternal approach behaviors in children and adolescent humans.

Flavor Aversion Learning

A rapid form of learning where an individual learns to avoid a food after a single adverse experience associated with that food.

Central Role

A position of primary importance or function within a system, process, or organization.