Consider the influenza data in Exercise 15-84. Use μ =160 and Ï = 2. (a) Construct an
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(a) Construct an EWMA control chart with λ = 0.1. Use L = 2.81. Does the process appear to be in control?
(b) Construct an EWMA control chart with λ = 0.5. Use L = 3.07. Compare your results to those in part (a).
Exercise 15-84
The number of influenza patients (in thousands) visiting hospitals weekly is shown in the following table. Suppose that the standard deviation is σ = 2 and the target value is 160.
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a lambda01 L281 sigma2 UCL 16129 LCL 15871 the chart signa...View the full answer
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Related Book For 
Applied Statistics And Probability For Engineers
ISBN: 9781118539712
6th Edition
Authors: Douglas C. Montgomery, George C. Runger
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