Homework 8 Worksheet The notation Z1-a/, (capital Z with subscript 1-a/2) denotes the z-score associated with a right tail of area 1-a/2 on the standard normal distribution. In inferential statistics, this z-score is called a "critical value" or CV. Z1-"/2 1) Using the standard normal tables, what is Zo.975? Using the standard normal tables, what is Zo.95? 3) Using the standard normal tables, what is Zo.995? 4) Using the standard normal tables, what is Zo.9? 5) Using the standard normal tables, what is the CV if a = 0.05? 6) Using the standard normal tables, what is the CV if a = 0.10? 7) Using the standard normal tables, what is the CV if a = 0.01? 8) Using the standard normal tables, what is the CV if a = 0.20? Suppose that a critical value is symmetric about the mean, such that Zay, is merely the negative version of Z1-"/2' Za/2 Z1-a/2 9) Using the standard normal tables (not the Empirical Rule), what is the critical value for the middle 95%? 10) Using the standard normal tables (not the Empirical Rule), what is the critical value for the middle 90%? 11) Using the standard normal tables (not the Empirical Rule), what is the critical value for the middle 99%? 12) Using the standard normal tables (not the Empirical Rule), what is the critical value for the middle 80%