This is a written discussion board assignment, so please respond to the followin

This is a written discussion board assignment, so please respond to the followin

This is a written discussion board assignment, so please respond to the following prompt in an essay response of around 150 words.
Prompt: For this discussion board post, explain the following three things:
What are degrees of freedom?
Why do we divide SS by df instead of by N when estimate population variance?
What is the difference between a one-sample t-test and a dependent samples t-test