Homework-Chapter 3. Student name Question 6 (multiple choice, circle the correct response for each of the following) (1) A positive Z score tells you that a score is: a statistically insignificant b. below the mean above the mean d. significant (ii) If a distribution of scores on a memory test has a mean equal to 50 and a standard deviation equal to 10, what is the Z score of a patient who scores 65 on the personality test? a -l 61.5 c. 0.3 d. -0.3 65-50 10 (iii) Which of the following Z scores is closest to the mean? a. 2.33 b. 0.33 -0.21 1.00 (iv) If researchers wish to determine the precise percentage of students whose neuroticism scores were greater than 2 SD above the mean, they would use a: a. normal curve table b. population parameter c. sample statistic d. long-run relative-frequency interpretation (v) If optimism is normally distributed among adults, then psychologists can expect approximately one-third of adults to have scores that transform to Z scores between: a. 0 and +1 b. 0 and -2 c. -1 and +1 d. -2 and +2