Yuii
Yuii
10.08.2021 • 
Mathematics

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: Elementary Middle Secondary 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

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