QUESTION 3 1. A superintendent wanted to know if there was a difference among staff retention at elementary, middle, and high schools in her district. Here are the data: Elementa Middle Secondar 17 17 10 15 12 12 20 10 14 12 8 16 14 5 18 15 20 10 What test should she conduct to determine if there is a difference among the levels? What do the results mean? Please write up your results according to the handbook and describe any follow up or additional statistical analysis, if necessary