1. Find the P@ value for a left-tailed hypothesis test with a standardized test statistic of z = XXXXXXXXXXDecide whether to reject H0 when the level of significance is a = 0.05. a. Use Table 4 in...

1. Find the P@ value for a left-tailed hypothesis test with a standardized test statistic of z = -1.71. Decide whether to reject H0 when the level of significance is a = 0.05.

a. Use Table 4 in Appendix B to find the area that corresponds to z = -1.71.

b. Calculate the P@ value for a left-tailed test, the area in the left tail.

c. Compare the P@ value with a and decide whether to reject H0.

2. Find the P@ value for a two-tailed hypothesis test with a standardized test statistic of z = 2.14. Decide whether to reject H0 when the level of significance is a = 0.05.

3. Find the P@ value for a two-tailed hypothesis test with a standardized test statistic of z = 1.64. Decide whether to reject H0 when the level of significance is a = 0.10.

a. Use Table 4 to find the area that corresponds to z = 1.64.

b. Calculate the P@ value for a two-tailed test, twice the area in the tail of the standardized test statistic.

c. Compare the P@ value with a and decide whether to reject H0.