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William A. Levinson
The difference between common (or random) cause and special (or assignable) cause variation is the foundation of statistical process control (SPC). An SPC chart prevents tampering or overadjustment...
    Meetings give me a rash. A really bad one. One that not even calamine lotion can soothe. The only things worse than meetings are reports. Standard daily reports, weekly reports, hourly reports. Reports on the status of reports. If I wasn’t already insane, these things would drive me insane. Take a...
    If you could experience the perfect workday, what would you be doing? Have you ever taken the time to think about it?  Whether you’re an entrepreneur climbing the corporate ladder or you’re selling donuts out of the back of your car, it’s essential to pause and reflect periodically on the...
    Inflation is a serious national issue. Credit agency Fitch Ratings just downgraded the U.S. credit rating—as in the “full faith and credit of the United States”—from AAA to AA+.1 This doubtlessly reflects the fact that our national debt exceeds $31 trillion, or almost $100,000 for every American,...
    I can’t count how many times during the past 20 years I’ve heard executives complain that their people aren’t enthusiastically participating in their lean program. Leaders lament that while the company has spent a small fortune to put everybody through continuous improvement training, hardly...

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