## Introductory Statistics 9th Edition

a. $1-P(z\lt Z)$ = .0500 $P(z\lt Z)$ = 1-.0500 = 0.9500 From Table IV of Appendix B, Z=1.645 b. $P(z\lt Z)$ = 0.025 From Table IV of Appendix B, Z = -1.96 c. $P(z\lt Z)$ = 0.01 From Table IV of Appendix B, Z = -2.33 d. $1-P(z\lt Z)$ = .0050 P($z\lt Z$) = 1-.0050 = 0.9950 From Table IV of Appendix B, Z=2.58