t helper tests

Question 1

What is a paired t-test?

Answer 1

= from the same same individual
= results are paired, both groups have the same sample size
degrees of freedm: n-1

Question 2

What is an unpiared t0test?

Answer 2

= degrees of freedom is
n1 + n2 -2
= number of samples in data set 1
n2 number of samples in data set 2