StudentShare
Contact Us
Sign In / Sign Up for FREE
Search
Go to advanced search...

Methods of Quality Improvement - Statistics Project Example

Cite this document
Summary
This report will analyze the sample data using statistical process control techniques (x-bar chart and R-chart) and will presents the findings from it.
Figure 1 shows…
Download full paper File format: .doc, available for editing
GRAB THE BEST PAPER96.7% of users find it useful
Methods of Quality Improvement
Read Text Preview

Extract of sample "Methods of Quality Improvement"

Download file to see previous pages

Furthermore, the R-chart shows no points outside the upper control limit or lower control limit. Therefore, the process is under statistical control and we can say that from the perspective of process variation, the process is in control. x-bar chart measures the central tendency (accuracy) of a process and indicate whether changes have occurred. R-chart measures the variability (dispersion) of a process. R-chart indicates that a gain or loss in uniformity has occurred. R-chart is independent from process mean.

x-bar chart and R-chart are used together to monitor variables in process are in control (or not). R-chart is monitored before the x-bar chart. This is because the x-bar chart limits rely on the average range and if process variability is not stable and is affected by special causes, then is not a reliable estimate of variability, and thus the x-bar chart limits are less meaningful (Moore et. al., 2011). The R-chart indicates that the process variability is in control, as all the ranges for the subgroup are in-between upper and lower control limits and there is no unusual pattern, as we move from left to right on the R-chart.

However, the x-bar chart indicates that the process accuracy is not in control, as not all the means for the subgroup are in-between upper and lower control limits. Rational sub-groupings are used in constructing control charts so that the individual observations within the subgroups have been measured under similar process conditions. The main idea behind rational sub grouping is that if the individual observations within the subgroups are as homogeneous as possible, then any special causes disrupting the process will be reflected by greater variability between the subgroups.

When special causes are present in the process, rational sub-grouping attempts to maximize the likelihood that subgroup statistics will signal that the process is

...Download file to see next pages Read More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Methods of Quality Improvement Statistics Project”, n.d.)
Methods of Quality Improvement Statistics Project. Retrieved from https://studentshare.org/statistics/1621268-methods-of-quality-improvement
(Methods of Quality Improvement Statistics Project)
Methods of Quality Improvement Statistics Project. https://studentshare.org/statistics/1621268-methods-of-quality-improvement.
“Methods of Quality Improvement Statistics Project”, n.d. https://studentshare.org/statistics/1621268-methods-of-quality-improvement.
  • Cited: 0 times

CHECK THESE SAMPLES OF Methods of Quality Improvement

Nursing Quality: Trauma Divisions

Patient satisfaction-measured with surveys In many medical institutions today, it is an accepted fact that patient satisfaction is one of the principal determinants of quality related issues (Thrasher & Purc-Stephenson, 2008).... This is because the trauma center has critically ill patients, and practitioners tend to be more inclined to ensuring that the different methods of treatment are well performed; other than in the importance of being seen to be empathetic to their patients....
6 Pages (1500 words) Essay

The Managemetn and Control of Quality

Six Sigma is a quality improvement methodology that is employed in an organization.... The DMADV technique works by developing different alternative models for quality improvement.... Six Sigma is an approach that is used in all sorts of business and other production areas where quality improvement is needed.... The DMAIC technique focuses on process improvement in an organization.... This is focused on improving the future performance on making sufficient improvement in the current activity level....
3 Pages (750 words) Essay

Six Sigma: A Business Process Improvement Method

This was how the Six-Sigma process of quality improvement came into existence, whose use, objectives and benefits are discussed in this paper.... The Quasar brand of TV sets was then the… In addressing the problem, the Japanese initially considered a quality improvement approach they had devised themselves called total quality management QM), but this was decided to be inappropriate for the problem at hand because its activities were exclusive to a firm's quality department and a few industrial engineers....
5 Pages (1250 words) Essay

Quality Improvement Methods

The techniques help in improvement of processes and programs, assessing and providing response to needs… The prescribed methods comprises of the following; the six sigma, lean and Plan Do Check Act (PDCA). This is a process improvement technique aimed at reducing errors and improving quality in of affiliation Compare and contrast the following continuous quality improvement methods: Six Sigma, Lean, and PDCA (Plan Do Check Act)Continuous quality improvement (CQM) is a concept that is commonly applied in various organizations....
2 Pages (500 words) Research Paper

Definitions of Quality in Terms of Business and Services Provision

The simplest definition of quality which can apply to all businesses; whether small or large is that quality is how the expectations and needs of the… Customers are an important part of every business and the quality of the products and services depend on what the customers need, expect and price that they are paying.... Another definition of quality states that quality is the process of satisfying the customer's implied and stated needs.... The levels of quality and pricing strategies also depend on the needs of the customers....
5 Pages (1250 words) Essay

Cost of Quality as a Measure of Process Performance

This research paper explores ten published journal articles that report on the findings from research conducted on the better understanding of quality costing or cost of quality and its effects on the process improvement, improved financial performance, and enhanced customer… sfaction .... The examination of Crosby's statement and its relevance in the current climate of The concept of Total Quality management as defined in the paper illustrates how theoretical understanding of quality costing may help explain the actions of industries in practice....
9 Pages (2250 words) Essay

Food processing : canning improvements

Several methods of accomplishing thermal process in canning have been developed overtime.... The most important principle governing these developments and improvements was the need to increase production outputs while maintain the quality of the food products in terms of nutritional and safety (Karel & Lund, 2003).... This has seen advancement in terms of equipment design to aid effective transfer of heat in food within the shortest time possible while preserving its quality....
7 Pages (1750 words) Essay

Business to Business System and Its Possible Improvement

The paradigm shift of companies to using these systems in order to enhance production of quality work, services and quality products that are effective to its customers.... he main task of Business-to-Business systems is to identify specific areas of the organization that require improvement.... urrent research workIn this context, a number of valid B2B quality applications are discussed....
7 Pages (1750 words) Assignment
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Contact Us