Hypothesis Testing_Part 3 And understand the procedure of hypothesis testing. The acceptance of hypothesis is determined using Pvalue as follows you first come up with your null and alternate hypothesis. You select which test statistic to be used. You determine the significance level which is alpha value, right? In most cases, it is 5% or 0. 5. You determine the criteria for rejection, right? Either you do that or you calculate significant probability from test statistic. Or you calculate the test statistic. Determine whether to accept hypothesis based on statistics….

Shortlist Critical Inputs – Hypothesis Testing And here is the next step, the third step. Oh, sorry, my bad. This is the second step shortlist to identify the critical inputs. Out of the umpteen number of inputs which we have found out, we have now identified all the potential inputs. We will have to validate whether the potential inputs are critical or not using some quantitative tools. And we would be using hypothesis testing, which is a quantitative tool, by the way. We are going to prepare the data collection…

Risk Based Analysis – FMEA_Part 2 Few other definitions of SME template which we have seen current control. How are you trying to control that? Are you having any preventive mechanism? Right. How would you control that? For example, think about this I have an iron box to iron the clothes. I want to iron the clothes and I have an iron box and I forgot to switch it off. Do you think if I forget to switch it off, it’s going to be heated to a temperature of 200…

6. Risk Based Analysis Introduction Risk analysis, right? Failure mode, effect analysis, effects and analysis. We are going to look into all that now. But first let us get into the preliminaries once again, even before we get started with what is a risk, here is my question to you guys. What is the difference between risk and an issue? Risk and an issue. What is the difference between these two? You’ll know that risk is an uncertain event which has a positive or negative outcome. And risk is always…

Identify all Inputs – Qualitative, Affinity Analysis Qualitative analysis. First thing is brainstorming. Brainstorming is nothing but collecting multiple ideas from a group of members. You bring in group sorry, my mind. You bring in group of members into a room and then you ask them on what are the inputs which might potentially impact your output. You ask them, what are those x’s? And then everyone is going to give you some inputs about what is going to impact the output, right? You simply write down all the inputs….

Introduction to Analyze Phase & Agenda Welcome to the analyze phase of Lean six Sigma Green belt which is driven using Minitab. Minitab is a statistical tool which is Guid based graphical user interface. It is very easy to navigate and extensively used across the globe in most of the Fortune 500 companies needs and it is used to a very great extent in most of the universities to deliver trainings on statistics and six sigma and so on and so forth. What is analyzed face all about? Even before…

Practice Project_Part 5 Here is the next step. So the project leader, mr. He, wanted to analyze the current process to understand the critical causes for failures. In the process, the team brainstormed all possible failure modes, its effect and potential causes. They also collected data on occurrence and detection. Please carry out a suitable analysis to evaluate the risks in the current process. This is what we need to do now. And what would be the suitable analysis to evaluate the risks in six sigma or otherwise? If you…

Practice Project_Part 3 So project leader, he wants to find out whether the potential inputs that have been shortlisted are critical or not. He wants to ascertain whether their inputs really affect the percentage of late payments that were translating a few of the payments into defectives or not. So he starts is collecting the data for all the potential inputs. We are going to look into that data set and we are going to mention the results and inferences of the hypothesis testing for each of those inputs. Let…

Practice Project_Part 1 Hello everyone. Welcome to the practice project. Until now we have learned about the various techniques in bits and pieces we have discussed, about the various concepts. We have discussed about the various phases including define phase, measure phase, analyze phase improve and control phase. Now is the time to actually look into a practice project and see how to get started with the defined phase, what kind of techniques can be used from the Measure phase and what kind of techniques can be used in Analyze,…

Anti Spoofing Welcome back. In this lecture we’ll talk about antispoofing. Let’s begin. Before we talk about antispoofing, let’s understand what do we mean by IP Spoofing? So, one method of attempting to gain access to a restricted area of the network is to insert a false source address in the packet header to make the packet appear to come from a trusted source. This technique is called as IP spoofing. IP Spoofing is a very well known attack on networks where you actually spoof the source address. You forward…