Let the test statistic Z have a standard normal distribution when H ₀ is true. Give the P-value for each of the following situations. (Round your answers to four decimal places.)

(a) H _a : μ > μ ₀ , z = 1.73 P-value =

(b) H _a : μ < μ ₀ , z = −2.68 P-value =

(c) H _a : μ ≠ μ ₀ , z = 2.76 or z = −2.76