THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 23

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
From a random sample of ten students in an operations management class that uses group-learning techniques,the mean examination score was found to be 82.75 and the sample standard deviation was 3.24.For an independent random sample of eight students in another marketing research class that does not use group-learning techniques,the sample mean and standard deviation of exam scores were 75.62 and 7.27,respectively.It is assumed that the and unknown population variances are not assumed to be equal.
-Determine the number of degrees of freedom.

• A)10
• B)15
• C)20
• D)25

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Definitions:

Lemuel Haynes

An influential African American religious leader and abolitionist in the late 18th and early 19th centuries, known for his writings and sermons advocating for equality and freedom.

Black Minister

A clergy member who is African American, typically involved in the Christian church, often playing a significant role in the African American community.

Geographic Movement

Refers to the migration or movement of people, goods, and ideas across different geographic locations.

Revolutionary War

The conflict between the Thirteen American colonies and British government that led to the independence of the United States, occurring from 1775 to 1783.