Parametric and Non-Parametric Test Dr. Srinibash

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Parametric and Non-Parametric Test Dr. Srinibash Dash Associate Professor Head School of Management GMU,SBP Experimental Design Investigator controls one or more independent variables Called treatment variables or factors Contain two or

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01
Parametric and Non-Parametric Test
Dr. Srinibash Dash Associate Professor & Head School of Management GMU,SBP<br>
02
Experimental Design Investigator controls one or more independent variables
Called treatment variables or factors
Contain two or more levels (subcategories)
Observes effect on dependent variable
Response to levels of independent variable
Experimental design: Plan used to test hypotheses<br>
03
Parametric Test Procedures Involve population parameters
Example: Population mean
Require interval scale or ratio scale
Whole numbers or fractions
Example: Height in inches: 72, 60.5, 54.7
Have stringent assumptions
Examples:
Normal distribution
Homogeneity of Variance
Examples: z - test, t - test<br>