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SCENARIO 10-5 To Test the Effectiveness of a Business School Preparation Course,8

Question 21

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SCENARIO 10-5
To test the effectiveness of a business school preparation course,8 students took a general business test before and after the course.The results are given below.
SCENARIO 10-5 To test the effectiveness of a business school preparation course,8 students took a general business test before and after the course.The results are given below. -Referring to Scenario 10-5,the value of the sample mean difference is_____ if the difference scores reflect the results of the exam after the course minus the results of the exam before the course. A) 0 B) 50 C) 68 D) 400
-Referring to Scenario 10-5,the value of the sample mean difference is_____ if the difference scores reflect the results of the exam after the course minus the results of the exam before the course.


A) 0
B) 50
C) 68
D) 400

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