De Bono 6 Thinking Hats Here are the various colors of the hats. Blue, white, yellow, red, black and green. Right? What is the 6th hat thinking all about? We’re going to do a deep dive on that. But first, let us understand who has developed this technique. Such an interesting technique, isn’t it? Right? It’s fun to do this. Trust me. All right. Dr. Edward Dubunu developed a technique for helping teams stay focused on creative problem solving by avoiding the negativity and group arguments. You get rid of…

Introduction to Improve Phase & Agenda Hello and welcome to the session on Wayne six sigma greenbuild improve fees. This session is driven using minitab which is a statistical tool. Even before we proceed with the improved fees, let us understand this equation which is y is equal to f of x output is equal to five function of inputs in the defined phase of lean six sigma green belt. We have looked into what this y is, how to identify the output. We have looked into that. In the…

SPC – Control Charts – Part 4, C Chart Your quality team inspects manufactured shoes against the checklist. There are seven opportunities for error in each transaction. 90 shoes are inspected every day and the number of errors were recorded. Number of errors are recorded. Comment about the process. Is a process in control or not? First of all, which control chart are we going to use here? Go back here. It’s a defects, right? Because they’re discussing about the opportunities for error and the number of errors are recorded….

SPC – Control Charts You need to look into your statistical process control, whether this is possible or not. Control charts are very effective if you want to monitor your process on an ongoing basis. What is the purpose of statistical process control? The purpose is to indicate when a process is working at its intended best. Only common cost variation is present in this situation. Look at this diagram here, right? Nothing is falling outside your control limits or your specification limits. And your control limits are within your…

Mistake Proofing Here you have someone who is doing skydiving. Just think about that. Midway, when he wants to open the parachute, it doesn’t open. Such a scary situation, isn’t that it’s? Extremely scary situation. Such a scary sight, isn’t it? Right? If you are doing skydiving and midway, your parachute doesn’t open up, isn’t that extremely scary situation, right? People have ensured to decor that those kind of mistakes do not happen. Once it drops to a particular altitude, it automatically triggers on the parachute. That is mistake proofing….

Introduction to Control Phase Hello, and welcome to this session of Lean Six Sigma Greenbuilt control fees. This is the last phase of DMAIC and we are into the control phase. As usual, we know that this session is driven using Minitab. In this particular session, we will look into control charts using Minitap. We will look into the basic concepts, theoretical concepts, and then we are going to discuss the case studies on which control chart to use, given a particular situation. Why did I put this image here?…

Regression Analysis_Part 2 Here is a case study. Dietitian wants to find out whether there is a relationship between calories consumed versus weight gained. If there exists a relationship, then how can we accurately establish this? That is a question that we have. And this is the pain area which we need to address using regression analysis. Weight versus calories. Let us open that particular file in minitab and go about doing this. The first step in regression analysis is to look into the relationship between the variables y and…

Hypothesis Testing_Chi Square Test Chi square test. What is chi square test? Chi square test is the test of homogeneity. And we have understood that earlier, right? It is used to compare the homogeneity of proportions of several groups. And here are a few of the underlying assumptions. The sample must be randomly drawn from the population. Data must be re reported in raw formats, not percentages. Measured variables must be independent of each other. Values are categories on independent or independent variables must be mutually exclusive. And it has…

AGGREGATE FUNCTIONS – GROUPS and SUBGROUPS Functions or group functions operate on multiple rows per execution and bring a single row result. During the Introduction of Functions section we saw this a little bit and now let us get to the details. For example, if I do select some population from test one, it will scan all the rows of of the population column and will add values and bring the total value in a single row. So what happens is it works on a set of rows to aggregate…

Hypothesis Testing_ANOVA_Part 1 First, there is a marketing organization which outsources their back office operations to three different suppliers. Now, the count is three, right? The contracts are up for renewal, and the chief marketing officer wants to determine whether they should renew contracts with all suppliers or any a specific supplier. Chief marketing officer wants to renew the contract of supplier who has the least transaction time. Chief marketing officer will renew all contracts if the performance of all suppliers is similar. Now go ahead and do the analysis…