Ops-571 Assignment

Calculate the 95% confidence interval for the population mean weekday sleep time of all adult residents of this Midwestern town.

When determining a confidence interval for this sample/population, it is necessary to remember that the interval must be one sided. Everyone to the right of a given vertical line on the distribution will be included in the result, while everyone to the left would be excluded. The vertical line represents a selected price for the

a.  Among all employees who travel less than the median (54%), find the 95% confidence interval for the proportion who stay with D&Y for at least 3 years.

Business process improvements and cost reduction strategies work together eliminating waste, increasing productivity, maximizing effectiveness, and reducing labor costs. Each action your organization takes to produce a product or service is a process. Use employee feedback in addition to cost reduction in order to simplify, merge, and remove wasteful processes that are not profitable.

The process generic study is considered to be an influential tool, in spite of the fact that it might also be quite challenging to be successfully executed. Due to its non-relevant characteristic to the organization field of industry, the organization should carefully select a process to be benchmarked and define an appropriate benchmarking partner jointly; however, finding a benchmarking partner for a process generic study can be tricky task, nonetheless, when a suitable partner is found, it is not difficult to convince the selected organization to participate in the benchmarking study , because the field of specialty is unrelated and both partners can benefit from the results, thus sharing information and expertise between both organizations

There are various phases in a quality process improvement. At Northrop Grumman, processes are improved using the Six Sigma process. The Six Sigma process includes five phases. The first stage is to define. This stage requires the team to create a SIPOC, describing suppliers, inputs, process, outputs and customers. Next, identify the customer and data that helps the team understand the customer's critical needs. The team will put together a team charter that includes the business case, which is the business reason for the proposed project, a problem statement specifically answering the what, where, when and to what extent of the project. The next part of the charter is a goal statement that meets the SMART criteria, and confirming that no one else has collected that data (Rath, 2003). Roles and responsibilities are assigned to each team member and documented. The project scope defines the starting point, insurance against scope creep and what constraints might affect the team. Milestones schedule a time limit for reaching each level of the process from start to end by using a Gantt chart of some similar chart. Finally a communication plan is developed for content during team

The last few years have witnessed big changes in the business climate, and business process improvement and continuous improvement (CI) efforts have certainly seen their share of change. I talk with companies every day and, without a doubt, there has been a fundamental shift in thought on how to best make meaningful process improvement happen.

Issue: Dynamic Seal, a precision parts manufacturer with a reputation for high quality, does not currently utilize a Statistical Process Control (SPC) system. However, United Airlines (UA), a major customer representing 14% of Dynamic Seal’s business, insists they implement an SPC system or loose United Airlines’ business. In addition Dynamic Seal do not have a sound preventative measure quality control system in place, preferring 100% inspection to cull bad quality, rather than building parts correctly from inception.

The case is based on an insurance service company which traced back to 1994. The company was facing problems in controlling and improving service quality and operation performance. This essay will stress on introducing the SPC (statistical process control) to DAV and providing suggestions on improving both the SPC and the company’s operation performance. The five questions required are covered and allocated

The purpose of this article is to serve as a reference point for people who desire to tackle a process improvement project. The authors explain the how to initiate a quality improvement project and direct the reader through the process of complying a team, identifying key stakeholders, and choosing a framework. The authors then present a clinical scenario through which to demonstrate the applicability of Lean, Six Sigma, and Model for Improvement methodologies. A brief overview of Lean and Six Sigma are presented as well as concise descriptions regarding their strengths and weakness. The Model for Improvement is highly emphasized throughout the work because of the methodology’s flexibility and simplistic nature. Overall the article serves a

My daily work involves critically reviewing complex processes. In my role as Certified Quality Process Analyst I train and lead teams through the eight simple steps of process improvement. Applied to any problem, these techniques are

* Introduces the construction and use of statistical process control (SPC) charts and an understanding of the relationship between SPC and conformance quality.

Some metrics that can be used to ensure that the process is effective can include leading measures in the financial, customer, internal processes and employee learning. In the financial process areas such as cost per unit, cost of poor quality and overall project savings can be measured. In the customer process the top metric would be customer satisfaction. Other areas can include ensuring the product is delivered on time, product quality and safety. Metrics in the organization's internal processes can include supplier quality, cycle time, amount of

Without success there is no business. The goal for any organization is be successful. In order to be a successful business, it is essential to explore the use of process management functions within the operations management (OM) processes. Nissan, like most companies, has had their high and low moments. Fortunately, they have been able to explore the use of process management functions to help reach their goals and keep their business successful. Nissan has used the five steps associated with Theory of Constraints (TOC ) and Total Quality Management (TQM) tools to help improve quality overall within the business. Nissan has also been able to analyze data through cause-and-effect diagrams, time-function maps, and weighted averages to incorporate OM functions such as new products and future expansions.

Numerous process improvement methods exist and have been proven over the years. A common tool mentioned in the last section Six Sigma is highly popular in organizations. Yet the most simple and effective process to date has been considered the Deming cycle (B). The Deming cycle “is a simple methodology for improvement that was strongly promoted by W. Edwards Deming. It was originally called the Shewhart cycle after its founder, Walter Shewhart ”(B). The process is a 4 cycle system Plan, Do, Study, Act. The first stage of the process is the planning stage. Assessing the inputs required of a system in relative comparison to the outputs play an implement role in customer satisfaction. It’s imperative to understand the libations of both the customers and suppliers. The next stage of the process is the do stage this is where any sample analysis would be done. The “do” stage is primarily for gathering data which comes into use in the Study Stage. The study stage is about interpreting data in a language that is understandable for the purpose of the main objective. Lastly, after analyzing the data and determining the strengths, opportunities, and weakness it’s time to evaluate how to improve the processes in place to meet your objective. The Deming Shewhart Cycle is both effective for short-term and long-term continuous improvement. Learning is a process that allows us to build on our knowledge base from our mistakes. Deming 's Cycle is just one of the