any decent - or not decent - book on SPC will contain a table of relevant constants. A google search will also yield such a table.
I believe the extended table with sample sizes up to n=25 has been posted in this forum and a search here will find that one.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to the use of cookies.