
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Subject - account
Please help me.
Thankyou.

Transcribed Image Text: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:
Mean Grade
79.3
82.1
Professor 1
Professor 2
At the 2% level of significance, what is the decision?
Standard Deviation
22.4
12.0

Transcribed Image Text:Multiple Choice
Reject the null hypothesis and conclude the variances are different.
Fail to reject the null hypothesis and conclude the variances are different.
Reject the null hypothesis and conclude the variances are the same.
Fail to reject the null hypothesis and conclude the variances are the same.
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