A Survey Was Recently Conducted in Which Random Samples of Car

question 85

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 correct test statistic for these data?

• A) H = 1.965
• B) t = 1.96
• C) H = 3.34
• D) H = .65

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Definitions:

Chemical Signals

Molecules released by cells that are used to communicate with other cells, often playing a role in the regulation of physiological processes.

Fear Center

A colloquial term often used to refer to the amygdala, a part of the brain involved in processing emotions, including fear.

Amygdala

A section of the brain that is responsible for detecting fear and preparing for emergency events.

Hypothalamus

A region of the brain below the thalamus that coordinates both the autonomic nervous system and the activity of the pituitary, controlling body temperature, thirst, hunger, and other homeostatic systems.