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More from Carlos Ochoa

The Times they are A-Changin' for the Questionnaire
I must admit that I am sort of an intruder in the Market Research industry. I am not sure if this is the best way to describe myself after 12 years working in an Online Panel Company, occupying ...
November 19, 2015 | Carlos Ochoa
Is my difference significant?
In a previous post we tried to explain how I should choose the sample size in order to ensure that the obtained result is within a controlled margin of error. Today we are going to deal with a ...
March 03, 2015 | Carlos Ochoa
What sample size do I need?
One of our web’s most visited sections is the SAMPLE CALCULATOR. Thanks to this application, you can get an estimation of the sample size you need for your survey just providing basic data about the ...
February 23, 2015 | Carlos Ochoa