It Is Believed That the SAT Scores for Students Entering

question 54

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