Describe a situation where you would need each of the following tests: Multiple Regression, t-test for Related Samples, Correlational Analysis, and the z-test. Give one example for each test.
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Expert's answer
2010-11-25T04:54:58-0500
Multiple Regression : when we have to predict the value from several measured independent variables. t-test for Related Samples : when we have to compare to paired groups, to check their means or sta; Correlational Analysis : when we have to check if there some relationships between two or more observed veriables are exist. the z-test: if we have to check the null hypothesis in the sample with a huge number of observations ( or we know the standard deviation of the population.
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