T-tests and z-tests, What is the underlying difference

T-tests and z-tests

Reference no: EM13107145

How many variables are in a Z and T test? What are they? What are their levels of measurement?

What is the underlying difference between the T-test and the Z-test?

Provide an example of nominal information and write a work related survey question that would collect nominal data:

Reference no: EM13107145

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