Issue: Volume 5, Number 9
Date: September 2005
From: Mark J. Anderson, Stat-Ease, Inc. (http://www.statease.com)

Dear Experimenter,

Here's another set of frequently asked questions (FAQs) about doing design of experiments (DOE), plus alerts to timely information and free software updates. If you missed the previous DOE FAQ Alert, please click on the links at the bottom of this page. If you have a question that needs answering, click the Search tab and enter the key words. This finds not only answers from previous Alerts, but also other documents posted to the Stat-Ease web site.

Feel free to forward this newsletter to your colleagues. They can subscribe by going to http://www.statease.com/doealertreg.html. If this newsletter prompts you to ask your own questions about DOE, please address them via mail to:[email protected].

Here's an appetizer to get this Alert off to a good start:

A deceptively simple geometry problem: http://www.planarity.net/. This game, called "Planarity," was entirely programmed in Flash*—a multimedia tool often used (and abused!) to add pizzazz in Internet Web sites. The Planarity nodes respond quickly and very smoothly, because the program executes within
your browser—no screen updates are needed. *(For a history on how this tool was developed, see http://www.macromedia.com/macromedia/events/john_gay/.)

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1. FAQ: Why leverages are flagged in Design-Expert® software

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7. Personal note: The story of my recovery from a heart attack

This is old news for my family, close personal friends and immediate colleagues, but the Saint Paul Pioneer Press saw fit to publish my story of recovery from a heart attack last December, which I share with you via their posting at http://www.twincities.com/mld/twincities/archives/ (do advanced search in 2005 for "silent heart attack" - must purchase to see full article) The editor, Rhoda Fukushima, got off a bit in describing my event as a "silent" heart attack, which normally goes unnoticed for months, if not years. Other than that, I think she captured my experience fairly accurately.

PS. Speaking of recovery, let's all do what we can to help those who are suffering from the aftermath of Hurricane Katrina. I vacationed last Fall in the French Quarter of New Orleans and returned this Spring to give a technical presentation at a coatings research conference. These two visits give me some sense for the huge devastation in this unique American city. It makes one appreciate such mundane things as a roof over your head, food when you hunger and water to quench your thirst—none of which should be taken for granted.

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I hope you learned something from this issue. Address your general questions and comments to me at: [email protected].

PLEASE DO NOT SEND ME REQUESTS TO SUBSCRIBE OR UNSUBSCRIBE - FOLLOW THE INSTRUCTIONS AT THE END OF THIS MESSAGE.

Sincerely,

Mark

Mark J. Anderson, PE, CQE
Principal, Stat-Ease, Inc. (http://www.statease.com)
2021 East Hennepin Avenue, Suite 480
Minneapolis, Minnesota 55413 USA

PS. Quote for the month: What to say when your experiment fails to produce desirable results:

"We achieved a deferred success!"
—Mark (saw this wording advised for teachers not wanting to damage the self-esteem of their students: They must avoid labeling any child as a failure.)

Trademarks: Design-Ease, Design-Expert and Stat-Ease are registered trademarks of Stat-Ease, Inc.

Acknowledgements to contributors:
—Students of Stat-Ease training and users of Stat-Ease software
—Fellow Stat-Ease consultants Pat Whitcomb and Shari Kraber (see http://www.statease.com/consult.html for resumes)
—Statistical advisor to Stat-Ease: Dr. Gary Oehlert (http://www.statease.com/garyoehl.html)
—Stat-Ease programmers, especially Tryg Helseth (http://www.statease.com/pgmstaff.html)
—Heidi Hansel, Stat-Ease marketing director, and all the remaining staff

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#1 Mar 01, #2 Apr 01, #3 May 01, #4 Jun 01, #5 Jul 01 , #6 Aug 01, #7 Sep 01, #8 Oct 01, #9 Nov 01, #10 Dec 01, #2-1 Jan 02, #2-2 Feb 02, #2-3 Mar 02, #2-4 Apr 02, #2-5 May 02, #2-6 Jun 02, #2-7 Jul 02, #2-8 Aug 02, #2-9 Sep 02, #2-10 Oct 02, #2-11 Nov 02, #2-12 Dec 02, #3-1 Jan 03, #3-2 Feb 03, #3-3 Mar 03, #3-4 Apr 03, #3-5 May 03, #3-6 Jun 03, #3-7 Jul 03, #3-8 Aug 03, #3-9 Sep 03 #3-10 Oct 03, #3-11 Nov 03, #3-12 Dec 03, #4-1 Jan 04, #4-2 Feb 04, #4-3 Mar 04, #4-4 Apr 04, #4-5 May 04, #4-6 Jun 04, #4-7 Jul 04, #4-8 Aug 04, #4-9 Sep 04, #4-10 Oct 04, #4-11 Nov 04, #4-12 Dec 04, #5-1 Jan 05, #5-2 Feb 05, #5-3 Mar 05, #5-4 Apr 05, #5-5 May 05, #5-6 Jun 05, #5-7 Jul 05, #5-8 Aug 05, #5-9 Sep 05 (see above)

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