HW2 - .

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IE 307: Quality Improvement by Experimental Design Homework #2 Problems 15 and 20 from Chapter 5. Problems 3, 6, and 13 from Chapter 6. Extra problem)  A five axis CNC machine is used to machine an impeller used in a jet  turbine engine.  The blade profiles are an important quality characteristic.  Specifically,  the deviation of the blade profile from the profile specified on the drawing is important.   The response being measured is the  natural log of the standard deviation  from the  drawing profile as measured by a coordinate measuring machine at a series of points  around the blade.  The measurement is in thousandths of an inch and the standard  deviation is required to be less than 5 thousandths. Factor Level 1 (Code) Level 2 (Code) A:  x-axis shift -1 1 B:  y-axis shift -1 1 C:  z-axis shift -1 1 D: Tool Vender -1 1 E: a-Axis shift -1 1 F: Spindle speed -1 1
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