1. Why bother?June 14, 2013
The most annoying health statistics are based on small study groups.
eg. 9 out of 10 dentists recommend this toothbrush. Oral B as it turns out.
In maths we call this for obvious reasons a SMALL SAMPLE SIZE. This may not be a problem when buying a toothbrush, but what if they are trying to sell you – sticking with thedentist theme – a $5,000 procedure that breaks your jaw and resets it to improve your bite?
Where are the numbers? Has there even been any research? Or a large-scale survey about this procedure? Are people happy with this procedure? Did it even work?
You do not want to make a health decision based on a study involving a SMALL SAMPLE. From the above ad, a sample of 1, dentists are a hot date. You may not want to put your faith in this statistic.