Use a normal probability plot to assess whether the sample data could have come from a population that is normally distributed. An industrial psychologist conducted an experiment in which 40 employees that were identified as "chronically tardy" by their managers were divided into two groups of size 20. Group 1 participated in the new "It's Great to be Awake!" program, while Group 2 had their pay docked. The following data represent the number of minutes that employees in Group 1 were late for work after participating in the program. 121 129 144 148 144 160 145 180 135 138 150 126 135 150 155 156 156 157 128 150 A not normally distributed B normally distributed Additional content You can add text, images, and files here