Colleen Terresa and Mary are vying for a position as editor

Last updated: 9/11/2023

Colleen Terresa and Mary are vying for a position as editor Colleen who is tested with group I gets a score of 62 on her test Terresa who is tested with group II gets a score of 50 and Mary who is tested with group III gets a score of 92 If the average score for group I is 72 for group II is 78 and for group III is 69 and if the standard deviation for each group is 18 17 and 20 respectively which person has the highest relative standing in other words who has the largest z score answer