It Is Believed That the SAT Scores for Students Entering

question 68

Multiple Choice

It is believed that the SAT scores for students entering two state universities may have different standard deviations. Specifically, it is believed that the standard deviation at University A is greater than the standard deviation at University B. To test this using an alpha = 0.05 level, a sample of 14 student SAT scores from University A was selected and a sample of 8 SAT scores from University B was selected. The following sample results were observed: Based on this information, what is the critical value that will be used to test the hypothesis?

• A) = 3.55
• B) = 2.832
• C) z = 1.645
• D) = 3.237

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Definitions:

Psychosurgery

A surgical operation on the brain intended to relieve severe mental disorders.

Biomedical Therapy

Treatments for mental disorders that involve physical techniques, such as medication, to alter brain chemistry or physiology.

Tertiary Prevention

Tertiary prevention entails measures aimed at reducing the impact of ongoing illness or injury that has lasting effects.

Psychiatrists

Medical doctors specializing in the diagnosis, prevention, study, and treatment of mental disorders.