Question

Methods Grades _________________________________________________________________________________
I 3​ 4​ 3​ 2​ 3
II 3​ 6​ 6​ 7​ 3
​ III​​​​​​ 5​ 7​ 8​ 8​ 7
​​ IV​​​​​​ 9​ 8​ 9​ 9​ 10 __________________________________________________________________________________ Determine whether there is a significant difference in the results of the different methods at 5%level of significance.

Answer 1

Answer:

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