THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
In testing the hypotheses
H 0 : The two population locations are the same
H 1 : The two population locations are different,the following statistics were
calculated: n = 40,T + = 245,and T - = 575 with data drawn from a matched pairs experiment.
-When should you use a nonparametric test? If the normality assumptions are met,are you better off using a parametric t-test to a nonparametric Rank Test?

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The Answer of THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
In testing the hypotheses
H 0 : The two population locations are the same
H 1 : The two population locations are different,the following statistics were
calculated: n = 40,T + = 245,and T - = 575 with data drawn from a matched pairs experiment.
-When should you use a nonparametric test? If the normality assumptions are met,are you better off using a parametric t-test to a nonparametric Rank Test?