3. Using the unit normal table, find the proportion under the standard normal curve that lies to the right of each of the following. z = 1.00 z = 1.05 z = 0 z = 2.80 z = 1.96 4. Suppose that the scores of architects on a particular creativity test are normally distributed. Using a normal curve table (page 477480), what percentage of architects have Z scores. Above .10? Below .10? Above .20? Below .20? Above 1.10? Below 1.10? Above .10? Below .10? 5. A statistics instructor wants to measure the effectiveness of his teaching skills in a class of 102 students (N =102). He selects students by waiting at the door to the classroom prior to his lecture and pulling aside every third student to give him/her a questionnaire. a. Is this sample design an example of random sampling? Explain. b. Assuming that all students attend his class that day, how many students will he select to complete his questionnaire? The Unit Normal Table