Null Hypothesis vs. Hypothesis

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Null Hypothesis vs. Hypothesis: What’s the Difference? What Is Null Hypothesis? A null hypothesis is a prediction that there is no statistical relationship between two variables or two sets of data. Essentially, a null hypothesis makes the assumption that any measured differences are the result of randomness and that the two possibilities are the same […]

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Confirmation is Key to Reducing Risk and Increasing Accuracy

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Confirmation is a way to confirm that a process is working as expected. It can be used to validate or invalidate a hypothesis, test a process or product and test the process of testing.

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GOAL Deployment

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Using GOAL Deployment in support of their Strategic Plan, this company was able to align goals and objectives and achieve impressive organizational improvements  The Company historically used yearly Strategic Planning to lay out its macro goals and initiatives. This was done by each functional area of the company submitting what they believed they wanted to […]

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Accuracy vs. Repeatability: What’s the Difference?

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What Is Accuracy? Accuracy is the difference between a measured value compared to its true value. Since no measurement can be 100% exact, there needs to be a degree of inaccuracy allowed in the measurement. This degree of inaccuracy depends on the amount of error you are able to accept and is denoted by a […]

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Subject Matter Expert vs. Consultant: What’s the Difference?

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What is a Subject Matter Expert? Subject matter experts (SMEs) are people who have a significant amount of knowledge or experience regarding a specific subject. They can specialize in any kind of academic discipline, profession or practice. Even though their area of expertise is relatively narrow compared to general consultants, there is still a lot […]

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Visual Management Boards

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Visual Management Boards played a critical role in enabling this company to link and visually display critical metrics, KPIs and actions in a simple and consistent way. Using Visual Management Boards (VMBs), the company was able to consistently create and display critical organizational information  A Visual Management Board (VMB) is used to display critical information […]

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Repeatability vs. Precision

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What Is Repeatability? Repeatability is the typical variation that occurs when a person measures a part with the same tool (or gauge) multiple times. This concept relates to the accuracy of any measurement. A measurement is only as accurate as the typical variation that occurs when that item is measured. When conducting a repeatability test, […]

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Exit Criteria vs. Acceptance Criteria

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What Are Exit Criteria? Exit criteria are conditions that must be met before closing out one project stage and advancing to the next stage. When project management teams use exit criteria, they break down the project into multiple steps. Therefore, each stage will have its own set of conditions (exit criteria) that must be met […]

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Repeatability vs. Reproducibility: What’s the Difference?

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Repeatability and reproducibility are two ways that scientists and engineers measure the precision of their experiments and measuring tools. They are heavily used in chemistry and engineering and are typically reported as standard deviations in scientific write-ups. While these two measurements are both used in many types of experiments, they are quite different and offer […]

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Value Added vs. Non Value Added

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What is Value Added? The most important thing to understand about value concepts is that they always revolve around the customer. Customers are the ones who set the standard for value, which means it’s based on whether the customer believes the product or service will address their specific needs. Increasing appeal by adding value may […]

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Cpk vs. Sigma Level: What’s the Difference?

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What is Cpk? Cpk is short for Capability Index. It is a measurement of the capability of a process to deliver output that is within the specification limits of a process. The Benefits of Cpk With Cpk, you are able to determine how closely a process can meet overall specifications in its ability to produce […]

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Standard Operating Procedure vs. Work Instruction: What’s the Difference?

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What is Standard Operating Procedure? Most established companies have some kind of standard operating procedure (SOP) in place, even if it’s a bit vague and outdated. Six sigma practitioners have no excuse for vague or outdated procedures though because these things should be second-nature when you are deep into process management. A SOP is a […]

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Process Decision Program Charts (PDPC)

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An analytical management tool used to develop a basic outline of core processes and help the analysts consider what may go wrong with each step.

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Variable vs. Attribute Data: What’s the Difference?

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What is Variable Data? Variable data is any kind of information that is represented and recorded as measurements. The term is often used when discussing the creation of control charts for the purpose of process analysis. Variable data is quantitative, which means it can be described with numerical value and can change along a perpetual […]

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Pugh Matrix vs. Analytical Hierarchy Process: What’s the Difference?

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What is Pugh Matrix? When it comes to finding solutions and improvements in business processes, making a final decision can seem impossible. There are always multiple options for dealing with a situation or problems, which can be paralyzing for leadership. Pugh’s Controlled Convergence, also called the Pugh Matrix, is a numerical method for making tough […]

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Spaghetti Diagram vs. Value Stream Mapping: What’s the Difference?

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What is a Spaghetti Diagram? A spaghetti diagram is defined as the visual representation of the flow of an activity or process utilized to identify areas that could use improvement. It is unique in that it demonstrates motion work and its associated waste and assists in the quantification of the amount of walking an operator […]

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Hyper Micro Process Map

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Sometimes you have to break something down into the smallest possible pieces before you can make it right. Process mapping is one of the first major steps when adopting six sigma, so it’s something business leaders should learn to love. Depicting workflow and processes in a visual format sets the stage for defining, understanding and […]

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Continuous vs. Attribute Data: What’s the Difference?

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What is Continuous? Continuous data refers to numerical data that has any value within a certain range. There are infinite possibilities for the values, but they all fall within a range. These can be whole numbers or decimals measured using data analysis like skews and line graphs. This kind of data can change over time […]

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Null vs. Alternative Hypothesis: What’s the Difference?

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What is Null Hypothesis? Statistical information without context or contrast is meaningless. Anyone looking at a data set can find connections and discover patterns, but they’ll probably end up drawing all kinds of wrong conclusions. That’s why statisticians have to examine the data from two different perspectives and always consider how the information they are […]

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Categorical vs. Continuous Data: What’s the Difference?

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What is Categorical Data? Categorical data is statistical information that is presented according to its division into certain groups. In this model, values are sorted into predefined categories according to the design of the analysts. Grouping data points into categories in this way can be useful depending on the goals of the research, but it’s […]

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Discrete vs. Continuous Data: What’s the Difference?

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Discrete vs. Continuous Data: What’s the Difference? When it comes to Six Sigma, data is your lifeblood. The ability to interpret what the data is saying is how you know whether you are on the right path in achieving your goals and objectives and avoiding roadblocks on your journey towards success. Accurately collected and analyzed […]

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Flowchart vs. Process Map: What’s the Difference?

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What is a Flowchart? A flowchart is a diagram of several boxes or other shapes connected with arrows, wherein each box is text that represents a step in a process or workflow. It is meant to reflect the process or workflow step-by-step, in sequential order, with multiple boxes having various arrows off-shooting from them, connecting […]

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Voice Of The Process vs. Voice Of The Customer: What’s the Difference?

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What is the Voice Of The Process? Voice Of The Process (VOP) is the manner in which a process communicates its performance capability to meet the expectations, wants, and needs of the customer. The Benefits of the Voice Of The Process Through analysis of your VOP, you gain insight into what moves you need to […]

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Customer Journey Map vs. Process Map: What’s the Difference?

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What is a Customer Journey Map? A customer journey map is a diagram that visually represents the various steps a customer goes through in engagement with your company. This can be with a product, service, online and in-person interaction, or a combination. The Benefits of a Customer Journey Map A customer journey map has a […]

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