Nov-12-2022, 08:16 AM
Hi,
We processed our first batch of 25.000 prayer cards. Awesome!
But: the quality of the result depends on a lot of factors,
probably the most important is the print quality of the card and the font used.
In older cards, eg. an "ij" is sometimes seen as "u" etc...
So I want to estimate the quality by studying a sample of the 25.000.
Question is how big a sample, and what does it tell me?
There are tables of course, but they deal mostly with people behaviour
and can I apply that in this situation?
Population 25.000
Confidence level :95%
Fault % :5
Sample size : 379
I remember that in statistics nothing is what it seems, so can I apply these formulas just like that?
It is difficult to give a "size" to the mistake. "u" instead of "ij", no problem, we use "acceptable or not".
thx,
Paul
We processed our first batch of 25.000 prayer cards. Awesome!
But: the quality of the result depends on a lot of factors,
probably the most important is the print quality of the card and the font used.
In older cards, eg. an "ij" is sometimes seen as "u" etc...
So I want to estimate the quality by studying a sample of the 25.000.
Question is how big a sample, and what does it tell me?
There are tables of course, but they deal mostly with people behaviour
and can I apply that in this situation?
Population 25.000
Confidence level :95%
Fault % :5
Sample size : 379
I remember that in statistics nothing is what it seems, so can I apply these formulas just like that?
It is difficult to give a "size" to the mistake. "u" instead of "ij", no problem, we use "acceptable or not".
thx,
Paul