Suppose that you are testing the following hypotheses where the variance is unknown:
H0 :  100
H1 :   100
The sample size is n = 20. Find bounds on the P-value for the following values of the test statistic.
(a) t0 = 2.75
(b) t0 = 1.86
(c) t0 = −2.05
(d) t0 = −1.86