[quote=Delaware Golf]Not a good idea to compare one round to another! Here's why...
This excerpt is from top statistician Don Wheeler's text "Understanding Variation: The Key to Managing Chaos"
"While it is simple and easy to compare one number with another number, such comparisons are limited and weak. They are limited because of the amount of data used, and they are weak because both of the numbers are subject to the variation that is inevitably present in real world data. Since both the current value and the earlier value are subject to this random variation, it will always be difficult to determine just how much of the difference between the values is due to random variation, and how much, if any, of the difference is due to real changes."
Don Wheeler's mentor was W. Edwards Deming another top statistician who made major contributions through statistical (SPC, Statistical Process Control) and management techniques with Japanese industry after World War II that improved the Japanese economy back in the early 1950's. Just look to the automobile industry from the mid-70s through current impacts (major use of SPC)...
"...good intentions are not enough"...quote from W. Edwards Deming "Out of the Crisis"....
Hybrid Mode
