Bayesian Methods for Obtaining X-bar Chart: An Application on Food Quality Control
Journal of Institute of Science and Technology, 2015 This article is about the Bayesian methods of constructing control chart for process mean. The control chart for mean based on the use of normal prior distribution seems to be robust for normal observations. The concussion is derived from an experiment of a set of real dada of the weights of a food product filled in pouches.
R. Khatiwada
semanticscholar +4 more sources
South African Journal of Industrial Engineering, 2013 The double sampling (DS) X bar chart, one of the most widely-used charting methods, is superior for detecting small and moderate shifts in the process mean.
Michael B.C. Khoo +4 more
doaj +3 more sources
Design of X-bar control chart based on Inverse Rayleigh Distribution under repetitive group sampling
Ain Shams Engineering Journal, 2021 The X¯ control chart is usually used in statistical quality control (SQC) to observe the change in procedure mean. In this paper, X¯ control chart for Inverse Rayleigh Distribution (IRD) is designed under repetitive group sampling at lower record values.
Ambreen Shafqat +2 more
doaj +2 more sources
A New X-bar Control Chart for Multiple Dependent State Sampling Using Neutrosophic Exponentially Weighted Moving Average Statistics with Application to Monitoring Road Accidents and Road Injuries [PDF]
International Journal of Computational Intelligence Systems, 2021 In this article, an efficient mean chart for symmetric data have been presented for multiple dependent state (MDS) sampling using neutrosophic exponentially weighted moving average (NEWMA) statistics.
Nasrullah Khan +4 more
semanticscholar +2 more sources
Qalaai Zanist Scientific Journal, 2021 The presence of outliers in a sample significantly affects the estimated values, which is why the highly efficient Median Absolute Deviation (MAD) method has been used due to of its great robust against the existence of outliers values in the data.
D. M. Saleh, D. Jamil
semanticscholar +3 more sources
Economic Statistical Design of integrated X-bar-S control chart with Preventive Maintenance and general failure distribution. [PDF]
PLoS ONE, 2013 The application of Preventive Maintenance (PM) and Statistical Process Control (SPC) are important practices to achieve high product quality, small frequency of failures, and cost reduction in a production process. However there are some points that have
Santiago Omar Caballero Morales
doaj +3 more sources
Design of X-Bar Control Chart Using Multiple Dependent State Sampling Under Indeterminacy Environment [PDF]
IEEE Access, 2019 An X-bar control chart using the multiple dependent state (MDS) sampling under indeterminacy is presented in this paper. The MDS sampling utilizes the previous subgroup information if in-decision on the first sample. The use of MDS increases the power of
Muhammad Aslam +2 more
doaj +2 more sources
Exact run length distribution of the double sampling x-bar chart with estimated process parameters
South African Journal of Industrial Engineering, 2016 Since the run length distribution is generally highly skewed, a significant concern about focusing too much on the average run length (ARL) criterion is that we may miss some crucial information about a control chart’s performance.
Teoh, W. L. +4 more
doaj +3 more sources
X-bar control chart for non-normal symmetric distributions
Advances in Methodology and Statistics, 2021 In statistical quality control, X-bar control chart is extensively used to monitor a change in the process mean. In this paper, X-bar control chart for non-normal symmetric distributions is proposed. For chosen Student, Laplace, logistic and uniform distributions of quality characteristic, we calculated theoretical distribution of standardized sample ...
Kristina Veljković
openaire +4 more sources
The Effect of Non-Normal Distributions on the Control Limits of X-Bar Chart
Proceedings, 2018 Shewhart control charts are often used by industry organizations for quality control. The most common diagram used is the X-bar chart, which monitors the progress of the mean of parameter over time.
Peter Madzík
semanticscholar +2 more sources