Two Accounting Professors Decided to Compare the Variance of Their

question 49

Multiple Choice

Two accounting professors decided to compare the variance of their grading procedures. To accomplish this, they each graded the same 10 exams, with the following results: At the 1% level of significance, what is the decision?

• A)Reject the null hypothesis and conclude the variances are different.
• B)Fail to reject the null hypothesis and conclude the variances are different.
• C)Reject the null hypothesis and conclude the variances are the same.
• D)Fail to reject the null hypothesis and conclude the variances are the same.

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Definitions:

Exam Mean

The average score obtained by all the examinees in an examination.

Midpoint

Refers to the exact middle point in a range of values, often calculated as the average of two extreme values in a set.

Sum

The result of adding a set of numbers or quantities together.

Mean Value

A statistical measure that determines the central tendency of a dataset by summing all values and dividing by the count of values, reflecting the dataset's average.