h of the data values (below) was

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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M3
2. Each of the data values (below) was taken from a
process with mean u=9" and o=1". X1=9.2, X2=9.7,
X3=8.1, X4=12.5, X5=15.6
a) Calculate the EWMA statistic using A=0.30 for
each data point, assume zO=9.
b) Calculate steady-state limits (use L=3) and
determine if the process is out of control.
c) Indicate which, if any, points are out of control.
d) Using the same data, compute the CUSUM
statistic for each data point
Transcribed Image Text:2. Each of the data values (below) was taken from a process with mean u=9" and o=1". X1=9.2, X2=9.7, X3=8.1, X4=12.5, X5=15.6 a) Calculate the EWMA statistic using A=0.30 for each data point, assume zO=9. b) Calculate steady-state limits (use L=3) and determine if the process is out of control. c) Indicate which, if any, points are out of control. d) Using the same data, compute the CUSUM statistic for each data point
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