Mathematics, 10.02.2022 06:50, ha328

Two machines, X and Y, produce earbuds. Let X represent the diameter of an earbud produced by machine X, and let Y represent the diameter of an earbud produced by machine Y. X has a mean of 14 mm with a standard deviation of 0.6 mm, and Y has a mean of 15.2 mm with a standard deviation of 0.2 mm. Which answer choice correctly calculates and interprets the mean of the difference, D = X – Y? answer is A) -1.2; earbud blah blah

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Two machines, X and Y, produce earbuds. Let X represent the diameter of an earbud produced by machin...