The value for which P = 0.05, or 1 in 20, is 1'96 or nearly 2; it is convenient to take this point as a limit in judging whether a deviation is to be considered significant or not. Deviations exceeding twice the standard deviation are thus formally regarded as significant.
Convenient p=0.05
| Author | |
| Year | 1950 |
| Source | Statistical Methods for Research Workers |
| Tags |