This is what you already answered: Job Well done! It is known that for a paired t test, df=n-1. Sample size, n = df+1 = 30+1 = 31. Sample size = 31. These are additional new questions based on that...

This is what you already answered: Job Well done!

It is known that for a paired t test, df=n-1.

Sample size, n = df+1 = 30+1 = 31.

Sample size = 31.

These are additional new questions based on that answer:

1. What is the
t
_cv

_{2. What is the
tobt?}

_{3. What should the researcher conclude (reject or fail to reject the null hypothesis)? Does this mean there is a difference between the two conditions?}