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Usability Engineer

Real-Life Activities

Real-Life Math

Susan Reale is a qualitative and usability research consultant with her own company REALeResearch. As a qualitative researcher, she looks at data from a relatively small group of respondents. She does not analyze the results with statistical techniques. That is the job of quantitative researchers. They statistically analyze data from large groups.

Even though she is not required to use difficult statistical techniques, she still finds that math creeps into her work. "You have to know basic math, at least," she says.

You are working with Reale in her consulting business. You must put together a proposal to bid on a job a client is offering. The job requires you to travel to four different cities.

You will interview 10 people in each city. You will need to account for return travel for each city, a hotel room for three nights in each city, meal expenses for three days, the rental of a conference room for interviewing, and wages for the people you will interview. In addition to your expenses, you charge $40 an hour for your expertise. You estimate it will take you 140 hours to complete this project.

Here are your expenses:

Travel: $1,455

Hotel: $1,545

Meals: $800

Conference Room: $1,605

Payment for Interview Subjects: $1,800

Your wages: $40 x 140 hours

All things considered, how much will each interview cost?