Six Sigma

Six Sigma Project Assignment Part 1 and 2 – Onground Team Project Part 1 (as completed last week) Define: ? Identify and describe a particular paper airplane design. You choose the design. Nothing fancy is required. Make ten planes according to this design. Try to make them exactly the same, but don’t become too stressed; some variation cannot be avoided. ? The key metric is flight time (how long the plane flies before it hits the floor). Fly each of your ten planes one time and measure how long it takes for each of the ten flights. Use a stop watch and collect data in terms of seconds. Do not round the data to even seconds. You will probably need one person to fly the plane and one other person to time the flights. ? Using the collected data, establish the current process capability. For example, what is the average flight time? What is the standard deviation? You can do this in Minitab with Stat>Basic Stats>Descriptive Statistics. ? Assuming a fictional fare that you can charge per flight second, calculate your current revenues projection assuming 500 flights per year. Use some creativity. Compare this to a target flight time (longer than you demonstrated in your capability study). Identify how much revenue you are currently missing because you are not currently achieving the target flight time. Do not try to change your design at this time. Measure ? Identify design or other such factors that might be preventing longer flight times. You might use such tools as a cause-and-effect diagram. Choose a couple factors that you might want to experiment with in order to increase flight times. Don’t experiment just yet. ? Evaluate your current ability to measure flight times. You might do this by having more than one person measure the flight times and compare results. How well do multiple people reproduce the same flight times? If the times measured times differ, which time is most likely to be correct? Part 2 (Reminder: Please cut and Paste your Minitab figures into your presentation) Analyze: ? Choose one continuously variable factor to experiment with. This would be a factor that when measured results in a numerical result. For example, you might choose “length of airplane” as a factor to experiment with. Other examples are paper weight, length of wings, number of folds, number of paper clips, etc. I will use length of airplane is describing these instructions, but you simply substitute the experimental factor that you choose. Make a different airplane for each factor value (a different plane for each length). Fly these planes and collect data for flight times versus airplane length. Only fly each physical plane once. Create a scatter plot (X-Y plot) to visually detect if there is a relationship between length of plane and time of flight. In Minitab you can create this scatter plot as follows: Graph>scatter plot>simple>ok> click on time of flight as the Y variable and length of plane as the X variable > click on the column with your time of flight data as the Y variable and the column with the length of plan as the X variable.        

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