On a Finance Exam,15 Accounting Majors Had an Average Grade

question 28

Multiple Choice

On a finance exam,15 accounting majors had an average grade of 90. On the same exam,7 marketing majors averaged 85,and 10 finance majors averaged 93. What is the weighted mean for all 32 students taking the exam?

• A)89.84
• B)89.33
• C)89.48
• D)10.67

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Definitions:

Statistically Significant

A term indicating that a result from data analysis is not likely to occur by chance, implying it is meaningful in the context of the hypothesis being tested.

Sample Groups

Selected subsets of a population used in research studies to represent the entire group from which they were chosen.

Chance Variation

Random fluctuations that affect data or experimental outcomes, not attributable to any specific cause.

Populations

All the inhabitants of a particular town, area, or country, or a group of organisms of the same species living in the same area.