What good are z-scores and why would we need to know about them? For those variables, are any of them interval or ratio scale measurements?  What descriptive statistics are reported? 

This will be a detailed discussion worth 10 points so plan accordingly.
Given our Chapter 5 and 6 readings plus the following videos.
⦁ What is the normal curve and where does it come from?
⦁ What are two observations in your life are normally distributed and what is one which is not?
⦁ What good are z-scores and why would we need to know about them?
For those variables, are any of them interval or ratio scale measurements?  What descriptive statistics are reported?

What graphs or charts are used?  Does the study report skewness, outliers, or indicate that any of the data is not normally distributed?
⦁ What are the names of some of the other inferential statistical tests or procedures used in that paper?  We will not have studied these, but we want to start becoming familiar with the statistical tests used to analyze data in your field of interest.
⦁ List one or two of those tests and explain what you think they do.