The factors that impact the quality of manufactured medical wires used in cardiovascular devices was investigated in

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The factors that impact the quality of manufactured medical wires used in cardiovascular devices was investigated in Quality Engineering (Vol. 25, 2013). A complete 3-factor factorial design, with each factor at 2 levels, was employed. The three factors (levels) are: Machine type (I or II), Reduction angle (narrow or wide), and Bearing length (short or long). The dependent variable of interest was the ratio of load to tensile strength. The experiment was replicated 3 times, with the data saved in the MEDWIRE file. A MINITAB printout of the analysis of variance is shown below. Fully interpret the results. As part of your answer, make a statement about whether or not the factors impact load-totensile- strength ratio independently.

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Statistics For Engineering And The Sciences

ISBN: 9781498728850

6th Edition

Authors: William M. Mendenhall, Terry L. Sincich

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