Choice of the chart depends on the data type as well as number of measurements in each sub group.
The type of chart again depends upon the subgroup measure as below..
What control chart shall I use?
akhila
Akhila is the founder and sole contributor of wordsandnotion.com and qualitynotion.com. By profession she is a software Quality and Quantitative data analyst. She is a self motivated life long learner who loves to decode signs from the universe. Her weirdness is totally aligned with her real life stories and thought experiments. She is the author of “Know them, One answer to many questions” (a General Knowledge book) and “I Had a Crush - The 17 Kinks” (A free ebook of 17 short stories)
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