Home »
Blog » QI Macros » Page 48
Improvement Insights Blog
Posts tagged "QI Macros"
Creating homemade Cp and Cpk templates often results in incorrect values. There are many, many mistakes you might make without realizing. Here are a few examples.
A customer sent me their home grown template for calculating Cp and Cpk and wondered why the QI Macros got such radically different values. It was easy to see from their data that they were using standard deviation, not Sigma estimator (Rbar/d2) to calculate Cp and Cpk. Use Stdev to calculate Pp and Ppk, not Cp and Cpk:
They had run the QI Macros histogram on two columns of data, one measured at 0 degrees and one measured at 90 degrees.
Continue Reading "Cp Cpk Formulas and the Mistakes in Homemade Templates"
Posted by Jay Arthur in Manufacturing, QI Macros, Six Sigma, Statistics.
Charles Duhigg, in his book Smarter, Faster, Better, describes a condition he calls “information blindness.” When faced with too much information, people shut down because they don’t know what to do with it.
I find this is true in most companies. They collect tons of data, but can’t “winnow” the data down into the vital few bits of information that would transform their business. What I invariably do is use PivotTables, control charts and Pareto charts to find the “vital few” bits that tell us exactly where to find and fix the problems that cause over half of the waste, rework and lost profits.
Continue Reading "Information Blindness"
Posted by Jay Arthur in Six Sigma.
At the ASQ Lean Six Sigma Conference, the QI Macros booth was right next to my biggest competitor–the big dog in the market (you know who they are). A guy comes up to me and says: “We bought 150 copies of their product (pointing to the booth next to me) and it was really expensive. I asked our Green Belts if they were using it and they said No, it’s too hard to use. What are they using; they said Excel.” He went on to say: “I’m thinking about getting the QI Macros because everyone is comfortable with Excel.”
And he wasn’t the only attendee who complained about the same issues: costs too much and too hard to use.
Continue Reading "Complex Statistical Software–a Barrier to Six Sigma"
Posted by Jay Arthur in QI Macros, Six Sigma.
Downloaded and installed Excel for the iPad. It’s provides basic Excel functionality. As expected, it will handle QI Macros charting templates, but won’t run macros. https://www.qimacros.com/store/?cat=14
To get the full functionality of the QI Macros or to run any Visual Basic addins, you’ll need a Windows 8 tablet running Excel 2010 or Excel 2013.
I tried several Win 8 tablets.
The Surface Pro is fast, but heavy and runs warm because of the I5 processor. I didn’t love the keyboard.
I tried the Samsung, but it had an idiot light that blinked when closed that ate 5% of the battery every day.
Continue Reading "Excel App for the iPad and QI Macros"
Posted by Jay Arthur in QI Macros.
A QI Macros customer recently asked: ” What is a reasonable and productive ratio of Lean or Six Sigma expert (LSSBB, for example) to staff for a healthcare organization that is starting the journey?”
The general consensus I can find online about Six Sigma belts/employees is:
1 BB/100 employees
3 GB/100 employees
I think these numbers are designed to keep Six Sigma training companies in business.
Depending on the size of a Medical center, you could use one BB and some GBs to get started. You can’t fix everything all at once, so one BB ramrodding a handful of GBs to solve key problems would be a good start.
Continue Reading "How Many Green and Black Belts Do You Need?"
Posted by Jay Arthur in Lean, Service, Six Sigma.
In a recent blog post, Minitab asked: “Have you ever found yourself switching back and forth between a Microsoft Excel file and Minitab Statistical Software just to complete a single analysis?”
Comparing Minitab to Excel (without QI Macros) is a bit like comparing a calculator to an abacus.
If you have the QI Macros add-in for Excel, you don’t have to switch. You can do everything in Excel.
Creating Graphs with Raw Data Easily
The blogger says: “Just try creating a Pareto Chart in Excel…I dare you!”
I’ll take that dare. If you have a column of defects (below), just click on the title for the column and choose the QI Macros Pareto Chart.
Continue Reading "Minitab and Excel: Which Should I Use and When?"
Posted by Jay Arthur in QI Macros.
