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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 ...
Comparing species richness among assemblages using sample units: why not use extrapolation methods to standardize different sample sizes?
(Blackwell MunksgaardCopenhagenDinamarca, 2003)
Assessing sample representativeness for inorganic chemical investigation of invertebrates by INAA
(SPRINGER, 2009)
The quality of environmental studies depends on the utilization of adequate sampling protocol and analytical method for obtaining reliable results and minimizing analytical uncertainties. In order to demonstrate the ...
Size matters: Changing population structure means changing sampling requirements for schistosome populations
(Sociedade Brasileira de Medicina Tropical, 2017)
Preliminary results concerning the VSS X- chart with unknow in-control parameters
(2010-12-01)
The VSS X- chart is known to perform better than the traditional X- control chart in detecting small to moderate mean shifts in the process. Many researchers have used this chart in order to detect a process mean shift ...
Preliminary results concerning the VSS X- chart with unknow in-control parameters
(2010-12-01)
The VSS X- chart is known to perform better than the traditional X- control chart in detecting small to moderate mean shifts in the process. Many researchers have used this chart in order to detect a process mean shift ...
On sample size estimation of the arithmetic mean of a lognormal distribution with and without type i
(Universidad Nacional de Colombia, 1997)
This article presents several formulas to approximate the required sample size to estimate the arithmetic mean of a lognormal distribution with desired accuracy and confidence under and without the presence of type I ...