Stat-Ease Blog

  • Stat-Ease, Inc: We've Moved!

    Stat-Ease Office on Broadway Place West

    Stat-Ease has moved approximately 1 mile north up to Broadway Place West. Continue reading

  • Great Times at the 7th European DOE User Meeting in Paris, France!

     DSC_8606

    Stat-Ease, Inc. and Ritme, scientific solutions hosted the 7th European DOE User Meeting & Workshop Continue reading

  • Register Now for the 7th European DOE User Meeting in Paris France!

    Cour d'honneur
    Le CNAM, Paris, France

    Stat-Ease, Inc. and Ritme, scientific solutions invite you to attend the 7th European DOE User Meeting & Workshop in Paris, France this June 6–8. The DOE User Meeting will be held at Le CNAM (the National Conservatory Continue reading

  • “BetterSpeak”—3 Steps to Improving How You Say What You Say

    By Guest Author Dr. David Pelton

    Stat-Ease is collaborating with Dr. Pelton to help users who achieve experimental success better communicate their results.  Enjoy this article on improving how you say what you say!

    In Act 1, Scene 1 of Shakespeare’s tragedy King Lear, Lear asks his three daughters to proclaim their affection for him which the first two, Goneril and Regan, do with genuine warmth, but the third, Continue reading

  • How To Save Costly Project Engineering Time With This Innovative Application of Response Surface Models (RSM)

    By Guest Author Nate Kaemingk

    Lead engineers are incredibly overworked and their time is disproportionately valuable compared to some more junior engineers. But when it comes to doing project cost estimations, we don't have much of a choice but to ask some of these high-value engineers for the estimates if we want a realistic level of accuracy. Plus, the unfortunate reality is that many project costs end up being too high to justify the screening business case Continue reading

  • Five Keys to Increase ROI for DOE On-Site Training

    By Shari Kraber

    A recent discussion with a client led to these questions—“How do we keep design of experiments (DOE) training “alive” so that long-term benefits can be seen? How do we ensure our employees will apply their new-found skills to positively impact the business?” In my 20+ years as a DOE consultant and trainer, I have seen many companies who invested in on-site training, only to have it die a quick death mere days Continue reading

  • Adding Intervals to Optimization Graphs

    Design-Expert® software provides powerful features to add confidence, prediction, or tolerance intervals to its graphical optimization plots. All users can benefit by seeing how this provides a more conservative ‘sweet spot’. However, this innovative enhancement is of particular value for those in the pharmaceutical industry who hope to satisfy the US FDA’s QbD (quality by design) requirements.

    Here are the definitions: Continue reading

  • Choosing the Best Design for Process Optimization

    Ever wonder what the difference is between the various response surface method (RSM) optimization design options? To help you choose the best design for your experiment, I’ve put together a list of things you should know about each of the three primary response surface designs—Central Composite, Box-Behnken, and Optimal.

    Central Composite Design (CCD)

  • Tips and Tricks for Navigating Design-Expert® Software

    We’ve designed Design-Expert® software to be flexible and user-friendly. For those of you who haven’t had a chance to fully explore its capabilities, here are some tips to help you navigate the software and find options that are useful for you:

    • The all-new Design Wizard asks you a series of questions, and then directs you to a starting design! You may want to modify things from here, but it’s a great starting Continue reading
  • The Importance of Center Points in Central Composite Designs

    A central composite design (CCD) is a type of response surface design that will give you very good predictions in the middle of the design space.  Many people ask how many center points (CPs) they need to put into a CCD. The number of CPs chosen (typically 5 or 6) influences how the design functions.

    Two things need to be considered when choosing the number of CPs in a central composite design:
    Continue reading

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