Z-test or T-test
Can you discuss the difference between the two tests and provide example when we use each one.
Covid-19 and Statistics
It is obvious that all the projections that are being made about the spread of the virus is based on data analysis. What are the tools being used to make such projections?
Correlation and Causation
As you study the topic on correlation and regression, do you think that we can make a conclusion that correlation implies causation? why or why not?