what is the twotail probability in each of the following a n

what is the two-tail probability in each of the following?

a. n=10,S.E. from the mean = 2

b. n=10, S.E. from the mean =3

c. n=100, S.E. from the mean =2

Solution

a) Two tailed prob for n =10 is

t test p value for t statistic = 2

df = 9

prob (2tail) = .076553.

-------------------------------------------

b) df = 3

prob (2 tail) = .014956.

--------------------------------------

c) n =100

df = 99

p value = 0.04824