13. [-/3 Points] DETAILS JKESTAT11 6.E.035. Assume a normal distribution. (Give your answer correct to two decimal places.) (a) Find the z-score associated with the 60th percentile. (b) Find the z-score associated with the 85th percentile. (c) Find the z-score associated with the 91st percentile. You may need to use the appropriate table in Appendix B to answer this question. Additional Materials eBook 14. [-/4 Points] DETAILS JKESTAT11 6.E.040. MY NOTES ASK YOUR TEACHER PRACT Find the two standard scores (z) that correspond to the following. (Enter your answers from smallest to largest. Give your answers correct to two decimal places.) (a) The middle 71% of a normal distribution is bounded by them. and (b) The middle 82% of a normal distribution is bounded by them. and