In general,
there are two types of errors we can make while testing:
Type I error (False
positive) and Type II Error (False negative).
Statisticians summarize
the errors in the following
table:
The probability of committing Type I error
(False positive) is equal to the significance level (α).
The probability of committing Type II error (False
negative) is equal
to the beta (β). If you want to find out more about statistical errors, just follow this link for an article written by your
instructor.