Search
Now showing items 1-10 of 80
(X)OVER-BAR CHARTS WITH VARIABLE SAMPLE-SIZE
(Amer Soc Quality Control-asqc, 1994-07-01)
The usual practice in using a control chart to monitor a process is to take samples of size n from the process every h hours This article considers the properties of the XBAR chart when the size of each sample depends on ...
(X)OVER-BAR CHARTS WITH VARIABLE SAMPLE-SIZE
(Amer Soc Quality Control-asqc, 2014)
An adaptive chart for monitoring the process mean and variance
(Wiley-Blackwell, 2007-11-01)
Traditionally, an (X) over bar chart is used to control the process mean and an R chart is used to control the process variance. However, these charts are not sensitive to small changes in the process parameters. The ...
Variable parameter and double sampling (X)over-bar charts in the presence of correlation: The Markov chain approach
(Elsevier B.V., 2011-04-01)
The general assumption under which the (X) over bar chart is designed is that the process mean has a constant in-control value. However, there are situations in which the process mean wanders. When it wanders according to ...
The Variable Sample Size (X)over-bar Chart with Estimated Parameters
(Wiley-Blackwell, 2012-11-01)
The VSS X chart, dedicated to the detection of small to moderate mean shifts in the process, has been investigated by several researchers under the assumption of known process parameters. In practice, the process parameters ...
An adaptive chart for monitoring the process mean and variance
(Wiley-Blackwell, 2014)
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, 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 ...
Joint (X)over-bar and R charts with two-stage samplings
(Wiley-Blackwell, 2004-11-01)
When joint (X) over bar and R charts are in use, samples of fixed size are regularly taken from the process, and their means and ranges are plotted on the (X) over bar and R charts, respectively. In this article, joint (X) ...
Joint (X)over-bar and R charts with two-stage samplings
(Wiley-Blackwell, 2004-11-01)
When joint (X) over bar and R charts are in use, samples of fixed size are regularly taken from the process, and their means and ranges are plotted on the (X) over bar and R charts, respectively. In this article, joint (X) ...