Articles manufactured by a company are produced by 3 operators using different machines. The manufacturer wishes to determine whether there is a difference between machines A,B,C. Test at (a) a=0.05, (b) a=0.01  level of significance   Operator 1 Operator 2 Operator 3 A834 C817 B824 B822 A830 C825 C837 B821 A831

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Articles manufactured by a company are produced by 3 operators using different machines. The manufacturer wishes to determine whether there is a difference between machines A,B,C. Test at (a) a=0.05, (b) a=0.01  level of significance

 

Operator 1

Operator 2

Operator 3

A834

C817

B824

B822

A830

C825

C837

B821

A831

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