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Scullion Scullion
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7 years ago
A quality control specialist compares the output from a machine with a new lubricant to the output of machines with the old lubricant.
A) Experimental
B) Observational
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JoannaMillsJoannaMills
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7 years ago
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#2
Valued Member
7 years ago
A) Experimental
Scullion Author
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#3
7 years ago
My exam is literally tomorrow!

thanks
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#4
7 years ago
Good luck on your exam!
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