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? = –1.2; earbud manufacturers can expect the difference in the diameter of earbuds produced from machines X and Y, on average, to be –1.2 mm. = 0.4; earbud manufacturers can expect the difference in the diameter of earbuds produced from machines X and Y, on average, to be 0.4 mm. = 1.2; earbud manufacturers can expect the difference in the diameter of earbuds produced from machines X and Y, on average, to be 1.2 mm. = 29.2; earbud manufacturers can expect the difference in the diameter of earbuds produced from machines X and Y, on average, to be 29.2 mm.
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? = –1.2; earbud manufacturers can expect the difference in the diameter of earbuds produced from machines X and Y, on average, to be –1.2 mm. = 0.4; earbud manufacturers can expect the difference in the diameter of earbuds produced from machines X and Y, on average, to be 0.4 mm. = 1.2; earbud manufacturers can expect the difference in the diameter of earbuds produced from machines X and Y, on average, to be 1.2 mm. = 29.2; earbud manufacturers can expect the difference in the diameter of earbuds produced from machines X and Y, on average, to be 29.2 mm.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 22PFA
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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
= –1.2; earbud manufacturers can expect the difference in the diameter of earbuds produced from machines X and Y, on average, to be –1.2 mm.
= 0.4; earbud manufacturers can expect the difference in the diameter of earbuds produced from machines X and Y, on average, to be 0.4 mm.
= 1.2; earbud manufacturers can expect the difference in the diameter of earbuds produced from machines X and Y, on average, to be 1.2 mm.
= 29.2; earbud manufacturers can expect the difference in the diameter of earbuds produced from machines X and Y, on average, to be 29.2 mm.
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