Need help completing part A.

20 X ( x - x)a 13 X Q55: mode 20 20 13 - 7 20 Q56: range 17 24-16=8 20 20 0 0 0 05 50 20 O Q57: interquartile range 20 20 70 Q58: variance 27.33 20 70 20 14 Q59: standard deviation 5, 23 20 16 30 70 100 able 10 - 1 = 27. 03 The following 1 question (060) is either "True" or "False" Q60: A grouped frequency distribution is generally a poor choice for displaying data. The following 11 questions (Q61 to (71) are based on the following summarized research: (you will need your z-tables from Howell to complete many of these questions) A psychologist studied self-esteem scores and found the data set to be normally distributed with a mean of 70 and a standard deviation of 5. Part A**What raw score cuts off the bottom 33% of this distribution? Steps: Q61: What is the z-score that cuts off the bottom 33% of this distribution? Q62: What is the raw score that cuts off the bottom 33% of this distribution? 9