Practice with Ztable a For a z test statistic value of 171 f

             Practice with Z-table:

a. For a z test statistic value of 1.71, find the right tailed p-value.

b. For a z test statistic value of -2.18, find the two tailed p-value.

              Practice with t-table:

a. For a t-test statistic value of 3.25 with degree of freedom 9, find the right tailed p-value.

b. For a t-test statistic value of 1.74 with degree of freedom 17, find the left tailed p-value.

Solution

a)
Zo =1.71
P-Value : Right Tail - Ha : ( P > 1.71 ) = 0.0436

b)
Zo =-2.18
P-Value : Two Tailed ( double the one tail ) - Ha : ( P != -2.18 ) = 0.0293

c)
to =3.25
P-Value :Right Tail - Ha : ( P > 3.25 ) = 0.005

d)
to =3.25
P-Value :Left Tail -Ha : ( P < 1.74 ) = 0.94207