Int J Performability Eng ›› 2012, Vol. 8 ›› Issue (4): 457-461.doi: 10.23940/ijpe.12.4.p457.mag
• Short Communications •
RYAN BLACK and JUSTIN R. CHIMKA
Because the probability of Type I error is not evenly distributed beyond upper and lower three-sigma limits the c chart is theoretically inappropriate for a monitor of Poisson distributed phenomena. Furthermore the normal approximation to the Poisson is of little use when c is small. These practical and theoretical concerns should motivate the computation of true error rates associated with individuals control assuming the Poisson distribution.
RYAN BLACK JUSTIN R. CHIMKA. A Theoretically Appropriate Poisson Process Monitor [J]. Int J Performability Eng, 2012, 8(4): 457-461.
Add to citation manager EndNote|Reference Manager|ProCite|BibTeX|RefWorks