1.) Right tailed test, n=20 and t=2.235
df=20-1=19

How?

a) estimate the p-value
How?


2.) x bar=20 s=4 n=32 ho=22 ha u is less than 22

a) use the one mean t test
I got that t=-2.828 and the df=31 other then that I am stuck

b) estimate the p value
How?



Can I get an explaination on how to do these problems? thank you very much