Here are examples of some of the projects I have done for clients.
I. I analyzed sales data for oomph, a retailer of quality home furnishings in New Canaan, Connecticut, to help them refine their marketing strategy.
Combining data provided by oomph and data from government sources, I developed a model assessing how oomph’s marketing efforts were interacting with local demographic and economic conditions in affecting sales over time.
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II. An engineer at a manufacturing company asked me:
“I have a population of 20,000 parts, with a nonconforming proportion of 0.0010. From that population, I take a random sample n (say, n=2000). What is the probability that this random sample will have a nonconforming proportion greater than or equal to 0.0008?
“Looking at the limits of the problem, if n=1, the probability will be on the order of .0010, and as n approaches 20,000, the probability gets closer to 1. What I’m ideally looking for is a more accurate quantification of the probability as a function of n.”
I answered his question by:
- Providing him with the formula underlying the analysis. (It’s from the family of hypergeometric distributions.)
- Giving him R code so that he could perform the analysis himself.
- Creating a graph of the probability as a function of n.
- Interpreting the results in straightforward English.
III. A former colleague of mine provides consulting services to post-secondary educational institutions. She asked for my advice on analyzing the results of a survey she had conducted on employee satisfaction at a college.
I helped her:
- Understand the pros and cons of various methods of aggregating response variables to create summary scales.
- Choose the most appropriate models for her data. In particular, I guided her through the choice between logistic, multinomial logistic, and ordinal logistic models.
- Figure out how to run the models in SPSS.
- Understand the results of the models.
IV. This example demonstrates my ability to conduct qualitative research and to understand the needs of manufacturing companies.
Anoka-Ramsey Community College in Coon Rapids, Minnesota was planning to open a welding-training program at its campus in nearby Cambridge. The college hired me to help ensure that the program would fit the needs of local manufacturing companies.
For this project, I conducted interviews at ten companies representing the diversity of welding employers in the area (based on size, location, and welding technologies used). I developed the interview protocol, recruited the companies, recorded and transcribed the interviews, and summarized my findings in a report and a presentation to the college.
The results of my work helped guide the design of the welding program in Cambridge, which is now in its second year of operation.