M
Muhd Firdaus
Dear forum member,
i would like to seek opinion on the following:
1) I have some confusion about the use of X Bar - R Chart in SPC. What is the difference between X Bar - R Charts and Average Chart? Is it necessary to do it together at one time or can we choose to do any one of the chart at one time? .My c SPC checksheet showing only X Bar chart and Range Chart in its content and this has made me confuse because i am not sure whether Range Chart and Average Chart are referring to the same item or not? Please help to clear my doubt. Thank You.
i would like to seek opinion on the following:
1) I have some confusion about the use of X Bar - R Chart in SPC. What is the difference between X Bar - R Charts and Average Chart? Is it necessary to do it together at one time or can we choose to do any one of the chart at one time? .My c SPC checksheet showing only X Bar chart and Range Chart in its content and this has made me confuse because i am not sure whether Range Chart and Average Chart are referring to the same item or not? Please help to clear my doubt. Thank You.