Which Test Do I Use? Jack Is Designing a Two-Group

Multiple Choice

Which Test Do I Use? Jack is designing a two-group experiment and asks you which statistical test he should use.The first question you should ask him is:

A) "How many subjects will you run in each condition?"
B) "Is your research hypothesis directional or nondirectional?"
C) "Which level of measurement will you use?"
D) "What significance level are you using?"