Risk-based control chart
A risk-based control chart extends the classical Shewhart control chart by explicitly incorporating the costs and probabilities of two error types — false alarms (Type I) and missed shifts (Type II) — along with sampling costs, into the design of chart parameters. Rather than using arbitrary 3-sigma limits, the method selects sample size, sampling interval, and control limits to minimise the total expected cost or risk of operating the monitoring scheme.
Rekodi ya chanzo
Nukuu zimehamishwa kwa uhalisi kutoka kwa rekodi ya chanzo cha mbinu. Hakuna uthibitisho wa kiwango cha dai unaodokezwa kutoka kwao.
- Lorenzen, T. J., & Vance, L. C. (1986). The economic design of control charts: A unified approach. Technometrics, 28(1), 3–10. · DOI 10.1080/00401706.1986.10488092
- Duncan, A. J. (1956). The economic design of X̄ charts used to maintain current control of a process. Journal of the American Statistical Association, 51(274), 228–242. · DOI 10.1080/01621459.1956.10501322
Madai yaliyotunzwa
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Mbinu zinazohusiana
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