Two different polishing materials are being evaluated for use in machining operations in a manufacturing company....

Two different polishing materials are being evaluated for use in machining operations in a manufacturing company. One hundred machine parts were polished using polishing material A and of this number 87 had no polishing-included defects. Another 100 machine parts were polished using polishing material B and 75 parts were satisfactory upon completion. Is there any reason to believe that the two polishing materials differ? Use α = 0.02.

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orchestra answered 1 year ago

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