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:

Monthly

Monthly pertains to something occurring or being done every month or once a month.

Dollar Sales

The total revenue generated from the sale of goods or services, calculated in dollar terms.

Break-Even

A financial situation in a business where the income equals the costs, leading to neither profit nor loss.

Monthly

Pertaining to something that occurs, is calculated, or reported every month.