by Rehman Khan, guest blogger
There are many articles giving
Minitab tips already, so to be different I have done
mine in the style of my books, which use example-based learning. All
ten tips are shown using a single example.
If you don’t already know these 10 tips you will get much more
benefit if you work along with the example. You don’t need to
download any files to work along—although, if you... Continue Reading
by Matthew Barsalou, guest
The old saying “if it walks like a duck, quacks like a duck and
looks like a duck, then it must be a duck” may be appropriate in
bird watching; however, the same idea can’t be applied when
observing a statistical distribution. The dedicated ornithologist
is often armed with binoculars and a field guide to the local birds
and this should be sufficient. A... Continue Reading
we enter late December, snow is falling here on the East Coast of
the United States. The official start to winter is on December 21,
2016, but it’s certainly not uncommon to see snowflakes flying
before this date.
If you live in the U.S., you know the winter of 2015 was one for
the record books. In fact, more than 90 inches of snow fell in
Boston in the winter of 2015! Have you ever wondered how... Continue Reading
by Matt Barsalou, guest blogger
I know that Thanksgiving is always on the last Thursday in
November, but somehow I failed to notice it was fast approaching
until the Monday before Thanksgiving. This led to frantically
sending a last-minute invitation, and a hunt for a turkey.
I live in Germany and this greatly complicated the matter. Not
only is Thanksgiving not celebrated, but also actual turkeys... Continue Reading
been called a "demographic watershed".
In the next 15 years alone, the worldwide population of
individuals aged 65 and older is projected to increase more
than 60%, from 617 million to about 1 billion.1
Increasingly, countries are asking themselves: How can we
ensure a high quality of care for our growing aging
population while keeping our healthcare costs under control?
The answer? More... Continue Reading
Earlier this month, PLOS.org
published an article titled "Ten Simple Rules for Effective Statistical
10 rules are good reading for anyone who draws conclusions and makes decisions
based on data, whether
you're trying to extend the boundaries of scientific knowledge or
make good decisions for your business.
Carnegie Mellon University's
Robert E. Kass and several co-authors devised... Continue Reading
What does the eyesight of a homeless person have in common with
complications from dental anesthesia? Or with reducing
side-effects from cancer? Or monitoring artificial hip
These are all subjects of recently published studies that
analyses in Minitab to improve healthcare
outcomes. And they're a good reminder that when we
improve the quality of healthcare for others, we... Continue Reading
‘Statistics’ is a rising star. Everywhere I
turn, people are talking about data and the value of being able to
analyze and act on it. As someone who’s been writing about that for
years, I say it’s about time.
Statistics is like a talented
actress whose decades of appearing off Broadway have finally paid
For years, her work has been enriching our lives without us
knowing it. Statistics helps... Continue Reading
Control charts are a fantastic tool. These charts plot your
process data to identify common cause and special cause variation.
By identifying the different causes of variation, you can take
action on your process without over-controlling it.
Assessing the stability of a process can help you determine
whether there is a problem and identify the source of the problem.
Is the mean too high, too low,... Continue Reading
In 2007, the Crayola crayon company encountered a problem.
Labels were coming off of their crayons. Up to that point, Crayola
had done little to implement data-driven methodology into the
process of manufacturing their crayons. But that was about to
change. An elementary data analysis showed that the adhesive didn’t
consistently set properly when the labels were dry. Misting crayons
as they went... Continue Reading
By Matthew Barsalou, guest
Many statistical tests assume the data being tested came from a
normal distribution. Violating the assumption of normality can
result in incorrect conclusions. For example, a Z test may indicate
a new process is more efficient than an older process when this is
not true. This could result in a capital investment for equipment
that actually results in higher... Continue Reading
Before I joined Minitab, I worked for many years in Penn State's
College of Agricultural Sciences as a writer and editor. I
frequently wrote about food science and particularly food safety,
as I regularly needed to report on the research being conducted by
Penn State's food safety experts, and also edited course materials
and bulletins for professionals and consumers about ensuring they
had safe... Continue Reading
previous posts, I discussed the results of a recycling project done
by Six Sigma students at Rose-Hulman Institute of Technology last
spring. (If you’re playing catch up, you can read Part I and Part II.)
The students did an awesome job reducing the amount of recycling
that was thrown into the normal trash cans across all of the
institution’s academic buildings. At the end of the spring... Continue Reading
It’s usually not a good idea to rely solely on a single
statistic to draw conclusions about your process. Do that, and you
could fall into the clutches of the “duck-rabbit” illusion shown
If you fix your eyes solely on the duck, you’ll miss the
If you're using
Statistical Software for capability analysis, the
capability indices Cp and Cpk are good examples of... Continue Reading
by Lion "Ari" Ondiappan Arivazhagan, guest blogger.
Predicting project completion times is one of the major
challenges project managers face. Project schedule overruns are
quite common due to the high uncertainty in estimating the amount
of time activities require, a lack of historical data
completion, organizational culture, inadequate skills, the complex
and elaborative nature of... Continue Reading
by Lion "Ari" Ondiappan Arivazhagan, guest
An alarming number of borewell accidents, especially involving
little children, have occurred across India in the recent past.
This is the second of a series of articles on Borewell accidents in
India. In the first installment of the series, I used the
G-chart in Minitab Statistical Software to predict the
probabilities of innocent children... Continue Reading
by Lion "Ari" Ondiappan Arivazhagan, guest blogger
India, we've seen this story far too many times in recent
Timmanna Hatti, a six-year old boy, was trapped in a 160-feet
borewell for more than 5 days in Sulikeri village of Bagalkot
district in Karnataka after falling into the well. Perhaps the most
heartbreaking aspect of the situation was the decision of the
Bagalkot district... Continue Reading
2014 ASQ World
Conference on Quality and Improvement is coming up in early May
in Dallas, and this year’s International Team Excellence Award
Process (ITEA) will also come to a close at the conference, as
winners from the finalist teams will be chosen for ASQ gold,
silver, or bronze-level statuses.
The annual ASQ ITEA process celebrates the accomplishments of
quality improvement... Continue Reading
didn’t expect that our family trip to Florida would end with me
driving a plane load of passengers nearly 200 miles to their homes,
but it did.
Yes, it was a long and strange journey home. A journey that
started in the tropical warmth of southern Florida and ended the
next morning in central Pennsylvania, which felt like the arctic
wastelands thanks to the dreaded polar vortex.
During this... Continue Reading
Minitab is the leading provider of software and services for quality
improvement and statistics education. More than 90% of Fortune 100 companies
use Minitab Statistical Software, our flagship product, and more students
worldwide have used Minitab to learn statistics than any other package.
Minitab Inc. is a privately owned company headquartered in State College,
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countries around the world.