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"Education is the most powerful weapon which you can use to change the world”
– Nelson Mandela

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Chapter 12 Review Questions (RQ) and Discussion Questions (DQ)

Chapter 12 Review Questions

Q RQ #1 Explain the difference between testing for significant differences and testing for association.RQ #3 What is covariation? How does it differ from correlation? RQ #5 What is regression analysis? When would you use it?RQ #6 What is the difference between simple regression and multiple regression?

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Answer – In case of testing for association, there is attempt made to find out whether there is link/association between two variables in a specific manner or not. However, in case of testing for significant differences, there is attempt made to find out whether there is any significant difference available to be observed between the means of two different data sets. Finding out difference does not mean that there will not be any correlation in specific characteristics of the two data sets.