|
Un article trouvé pour ce sujet.
 |
|
|
|
|
|
|
|
|
Sample size |
2007-07-17 |
|
Nurse pose la question :
If a population has standard deviation 20, what is =
the
minimum sample size to be 95% confident that the error should be =
accurate to
within 4?
Harley Weston lui répond. |
|
|
|
