Using Online Video Examples in Introductory Business Statistics
Using Online Video Examples in Introductory Business Statistics Monnie McGee, Jing Cao Department of Statistical Science Robert Skinner, Ian Aberle, and Steve Snider Academic Computing Services, Office of the Provost Southern Methodist University August 10, 2006 Outline
Motivation Static vs. Dynamic Examples Equipment Recording the Videos (live!) More Example Videos Going Further JSM 2006 Seattle 2 The Problem She never gave us enough examples on how to work the homework problems I fail to see how this course will ever be
useful to me in the future JSM 2006 Seattle 3 Why Videos? Solutions posted on course website are not dynamic Important for students to see thought
processes involved in working the problem Digital video allows placement on the course website JSM 2006 Seattle 4 Typical Problem and Solution Employers may ask job applicants to take an IQ test if the test has been shown to predict performance on the job. Score on one test for the 20 to 34 age group are approximately Normally distributed with mean of 110 and standard deviation of 25. Use the Empirical Rule to answer the following questions: a) About what percent of the people in this age group have
score above 110? Since 110 is the mean, and the mean is equal to the median for a normal distribution, 50% of the people in this group will have scores above the mean. b) About what percent have scores above 160? 160 is 2 standard deviations from the mean. That means that there are 2.5% (5%/2) of the scores above the mean. JSM 2006 Seattle 5 Video Version Equipment Current Implementation
Headset microphone Macintosh Computer Snap Z Pro software Digital Writing Tablet Original Implementation Document camera (Elmo Desktop Presenter) Sony Media Converter & audio mixer iMovie software (free with mac)
JSM 2006 Seattle 7 Document Camera Elmo DT-150AF PAL Desktop Presenter
Portable (1.9 kg) Zoom capability Remote Control $ JSM 2006 Seattle 8 Snap Z Pro Software Captures activity on screen
Used to capture Excel and PowerPoint $69 JSM 2006 Seattle 9 Recording the Videos
A simple work by hand problem Concept problems Incorporating PowerPoint slides Incorporating Excel JSM 2006 Seattle 10 Going Further Assessment of student attitudes
End of semester evaluation Focus groups Creating CD of examples Virtual Guest Lecturers JSM 2006 Seattle 11
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