Answer:
To determine which statistics test tobe used in research study. Statistics test has need to be valid, and have samplesize needs to be Large enough to approximate the True distribution of the population being studied. In additional To determine which specific statistics tests to be used in research study you need to know whether your data meets certain assumptions the types of variables that you're dealing with.
Explanation:
The number of variables, types of data/level of measurement and the type of study design.
