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Ivey Publishing
Opion
Product Number:
9B02E003
Publication Date:
08/14/2002
Revised Date:
11/30/2009
Length:
4 pages
Product Type:
Case (Field)
Source:
Ivey
Opion produced buzz scores for a number of stocks on the major United States indices. A buzz score was a combination of the total volume of postings to a number of Internet message boards and the credibility of those doing the posting. Opion claimed that rapid changes in buzz for a stock represented unusual activity or indicated possible trends. Opion's challenge, was scaling their buzz scores in such a way that the baseline or typical level of buzz would not influence the interpretation of a large change in buzz. This case can be used to introduce the concepts of variability, confidence limits and control limits.
Issues:
Uncertainty; Statistical Analysis; Probability; Quality Control
Disciplines:
Management Science,  Introductory Business
Industries:
Other Services
Setting:
United States, Small, 2001
Intended Audience:
Intro/Undergraduate
Price:
$2.40 CAD / $2.40 USD Printed Copy
$2.10 CAD / $2.10 USD Permissions
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