June 2014
Beginner to intermediate
288 pages
7h 2m
English
Content preview from Better Business Decisions from Data
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PART II
Data
The temptation to form premature theories upon insufficient data is the bane of our profession.
—Arthur Conan Doyle
We now look at how data is obtained. This is the critical first stage in making use of data as the reliability of the conclusions of any statistical investigation depends on the data being obtained in an appropriate and fair manner. The features and format of the data, and how we can classify the data, are then discussed.
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