6.59 More on computing the P-value. A test of the null hypothesis H0: μ = μ0 gives test statistic z = −1.33.
(a) What is the P-value if the alternative is Ha: μ > μ0?
(b) What is the P-value if the alternative is Ha: μ < μ0?
(c) What is the P-value if the alternative is Ha: μ ≠ μ0?