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VSSI (X)over-bar charts with sampling at fixed times
(Marcel Dekker Inc, 1998-01-01)
A standard (X) over bar chart for controlling the process mean takes samples of size no at specified, equally-spaced, fixed-time points. This article proposes a modification of the standard (X) over bar chart that allows ...
VSSI (X)over-bar charts with sampling at fixed times
(Marcel Dekker Inc, 2014)
Joint (X)over-bar and R charts with variable sample sizes and sampling intervals
(Amer Soc Quality Control-asqc, 1999-10-01)
Recent studies have shown that the (X) over bar chart with variable sampling intervals (VSI) and/or with variable sample sizes (VSS) detects process shifts faster than the traditional (X) over bar chart. This article extends ...
Joint (X)over-bar and R charts with variable sample sizes and sampling intervals
(Amer Soc Quality Control-asqc, 1999-10-01)
Recent studies have shown that the (X) over bar chart with variable sampling intervals (VSI) and/or with variable sample sizes (VSS) detects process shifts faster than the traditional (X) over bar chart. This article extends ...
Bivariate control charts with double sampling
(Routledge Journals, Taylor & Francis Ltd, 2008-01-01)
In this article, we consider the T(2) chart with double sampling to control bivariate processes (BDS chart). During the first stage of the sampling, n(1) items of the sample are inspected and two quality characteristics ...
Joint (X)over-bar and R charts with variable sample sizes and sampling intervals
(Amer Soc Quality Control-asqc, 2014)