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Case Study 1: Statistical Thinking in Health Care
Due Week 4 and worth 150 points
Read the following case study
Ben Davis had just completed an intensive course in Statistical Thinking for Business
Improvement, which was offered to all employees of a large health maintenance
organization. There was no time to celebrate, however, because he was already under
a lot of pressure. Ben works as a pharmacist’s assistant in the HMO’s pharmacy, and
his manager, Juan de Pacotilla, was about to be fired. Juan’s dismissal appeared to be
imminent due to numerous complaints and even a few lawsuits over inaccurate
prescriptions. Juan now was asking Ben for his assistance in trying to resolve the
problem, preferably yesterday!
“Ben, I really need your help! If I can’t show some major improvement or at least a solid
plan by next month, I’m history.”
“I’ll be glad to help, Juan, but what can I do? I’m just a pharmacist’s assistant.”
“I don’t care what your job title is; I think you’re just the person who can get this done. I
realize I’ve been too far removed from day-to-day operations in the pharmacy, but you
work there every day. You’re in a much better position to find out how to fix the problem.
Just tell me what to do, and I’ll do it.”
“But what about the statistical consultant you hired to analyze the data on inaccurate
“Ben, to be honest, I’m really disappointed with that guy. He has spent two weeks trying
to come up with a new modeling approach to predict weekly inaccurate prescriptions. I
tried to explain to him that I don’t want to predict the mistakes, I want to eliminate them!
I don’t think I got through, however, because he said we need a month of additional data
to verify the model, and then he can apply a new method he just read about in a journal
to identify ‘change points in the time series,’ whatever that means. But get this, he will
only identify the change points and send me a list; he says it’s my job to figure out what
they mean and how to respond. I don’t know much about statistics — the only thing I
remember from my course in college is that it was the worst course I ever took– but I’m
becoming convinced that it actually doesn’t have much to offer in solving real problems.
You’ve just gone through this statistical thinking course, though, so maybe you can see
something I can’t. To me, statistical thinking sounds like an oxymoron. I realize it’s a
long shot, but I was hoping you could use this as the project you need to officially
complete the course.”
“I see your point, Juan. I felt the same way, too. This course was interesting, though,
because it didn’t focus on crunching numbers. I have some ideas about how we can
approach making improvements in prescription accuracy, and I think this would be a
great project. We may not be able to solve it ourselves, however. As you know, there is
a lot of finger-pointing going on; the pharmacists blame sloppy handwriting and
incomplete instructions from doctors for the problem; doctors blame pharmacy
assistants like me who actually do most of the computer entry of the prescriptions,
claiming that we are incompetent; and the assistants tend to blame the pharmacists for
assuming too much about our knowledge of medical terminology, brand names, known
drug interactions, and so on.”
“It sounds like there’s no hope, Ben!”
“I wouldn’t say that at all, Juan. It’s just that there may be no quick fix we can do by
ourselves in the pharmacy. Let me explain how I’m thinking about this and how I would
propose attacking the problem using what I just learned in the statistical thinking
Source: G. C. Britz, D. W. Emerling, L. B. Hare, R. W. Hoerl, & J. E. Shade. “How to
Teach Others to Apply Statistical Thinking.” Quality Progress (June 1997): 67–80.
Assuming the role of Ben Davis, write a three to four (3-4) page paper in which
you apply the approach discussed in the textbook to this problem. You’ll have to
make some assumptions about the processes used by the HMO pharmacy. Also,
please use the Internet and / or Strayer LRC to research articles on common
problems or errors that pharmacies face. Your paper should address the
following points:
1. Develop a process map about the prescription filling
process for HMO’s pharmacy, in which you specify the
key problems that the HMO’s pharmacy might be
experiencing. Next, use the supplier, input, process
steps, output, and customer (SIPOC) model to analyze
the HMO pharmacy’s business process.
2. Analyze the process map and SIPOC model to identify
possible main root causes of the problems. Next,
categorize whether the main root causes of the
problem are special causes or common causes.
Provide a rationale for your response.
3. Suggest the main tools that you would use and the
data that you would collect in order to analyze the
business process and correct the problem. Justify
your response.
4. Propose one (1) solution to the HMO pharmacy’s ongoing problem(s) and propose one (1) strategy to
measure the aforementioned solution. Provide a
rationale for your response.
5. Use at least two (2) quality references. Note: Wikipedia
and other Websites do not qualify as academic
Your assignment must follow these formatting requirements:

Be typed, double spaced, using Times New Roman
font (size 12), with one-inch margins on all sides;
citations and references must follow APA format.
Check with your professor for any additional
Include a cover page containing the title of the
assignment, the student’s name, the professor’s name,
the course title, and the date. The cover page and the
reference page are not included in the required
assignment page length.
The specific course learning outcomes associated with this assignment are:

Describe how organizations use statistical thinking to
be more competitive.
Apply the basic principles of statistical thinking to
business processes.
Apply the SIPOC model to identify OFIs in business
Use technology and information resources to research
issues in business process improvement.
Write clearly and concisely about business process
improvement using proper writing mechanics

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