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It Is Believed That the SAT Scores for Students Entering

question 71

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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: 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 Based on this information,what is the critical value that will be used to test the hypothesis?

Distinguish between one-tailed and two-tailed tests and apply them appropriately to hypothesis testing situations.
Understand the motivations and contributions of key figures in the progressive era.
Grasp the different areas of reform and activism during the progressive era, including urban, racial, and women’s issues.
Identify the causes and effects of specific legislation passed during the progressive era.

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