Question

Before conducting a test of significance, which of the given should you do?

inspect the data for outliers or other issues that might challenge the assumptions of the particular statistical test you wish to use
All of the answer options are correct.
set an appropriate significance level
determine the sample size needed for your inference to be successful

Answer 1

The correct answer is inspect the data for outliers or other issues that might challenge the assumptions of the particular statistical test you wish to use

Explanation: After the study has been done the best option is to inspect the data for outliers or other issues that might challenge the assumptions of the particular statistical test you wish to use, after this specific step which is one of the most important is just to join the results, make an assessment of all of them and check your hypothesis.