The test statistic of z = -2.50 is obtained when testing the claim that p 6 0.75. P-Values. In Exercises 17–20, do the following:

a. Identify the hypothesis test as being two-tailed, left-tailed, or right-tailed.

b. Find the P-value. (See Figure 8-3 on page 344.)

c. Using a significance level of a = 0.05, should we reject H0 or should we fail to reject H0?