Recall that the upper control limit is not a probability limit; it is placed at + 3 sigma because that is where it works best! The upper control limit is one key to process improvement actions. Use the Standard UCL Formula and the Control Chart Table to Calculate the UCL The upper cont...
Here is the five-step process to calculate your Process Sigma. Step 1: Define Your Opportunities An opportunity is the lowest defect noticeable by a customer. This definition, of course, is debatable within the Six Sigma community. Here’s a useful snippet from the forum discussing this point...
How to Calculate Financial Results From Lean Six Sigma ProjectsArun Hariharan
Step 3: Calculate the IQR Identify the first and third quartiles. Subtract to find the difference between the upper and lower quartile (Q3 – Q1). Since the interquartile range (IQR) is calculated as the difference, double-check information found in the first or third quartiles by adding ...
2. Calculate Cpu To calculate the Cpu, subtract the upper specification limit from the mean, then divide this by 3 times the standard deviation (SD): Cpu = (USL – Mean) / (3 * SD) 3. Determine the Cpk Once you have the Cpl and Cpu calculated, you can use the smaller of these ...
How to Calculate Volatility of a Stock Stocks always go up and down. How do you calculate volatility to maximize returns? Best Index Funds and How to Invest in Them Index funds track a particular index and can be a good way to invest. Get ...
Calculate Existing Cycle Times You can't know where to go if you don't know where you are. Even if the calculation is based on manual data, a rough cycle time used as a benchmark will provide the floor upon which to build. This tendency is tied to a company's overall equipment effec...
How many out of spec bags do you expect to find if you measure 1000 bags? You need some way of predicting this. That's where statistics come in. You can find the average, or mean weight of a bag of potatoes from all the ones you've weighed. You can calculate a standard deviation,...
To calculate your on-time delivery rate, you’ll need to know how many deliveries were late or missed in any given time period. Subtract that from the total number of planned deliveries to get the raw on-time delivery number, then divide by the total to get the percentage: Note that the...
How To Calculate Component Standoff Height I have an SMT component that has a height of 8mm and a stencil thickness of 0.5mm. We are using a lead-free paste. Is there a method of determining the overall height of the component on the board after reflow? The Assembly Brothers, Jim Hall...