Food quantity Qty of people How was the food Need to create histogram and set target
Control Chart Foundations
Non
Where the 2.66 number comes from
Where the 2.66 number comes from
Where the 2.66 number comes from
Standard Deviation
Calculating an Average
Mean Median
Common mistakes with Control Charts Not ploted in the time order – Creates the range Control the number before make changes – It variates after changes Comparison Between Before and After – Huge gap
Learning Example ImR Chart Test set point versus running set point – difference in monitoring
World of Statistics Control Chart – To Process Behaviour Chart. Because it is not control, it is how the process behave
Investigating Assignable Causes
Demonstrating Data Centre & Spread
Control Charts Recalculating OR Rules
Control Charts Recalculating AND Rules
Control Charts and the Improvement Cycle
Control Charts and the Improvement Cycle Control Charts and the Improvement Cycle Omitting data – Limits close together
Control Charts and the Improvement Cycle Adding more data
Control Charts and the Improvement Cycle Adding more data – Apply AND Rules
Control Charts and the Improvement Cycle Recalculation the limits
Deviation from aim Control Charts
Creating a useful Learning Phase
Four Common Mistakes of Control Charts No titles, no measures, no explanation Forget to start from Learning phase No use the 2 Electric Rules When display the chart it is not clear for the audience
Introduction to Capability
CP Calculation
Cpk calculation
One-Side Customer Specification Can't do CP, but still can calculate CPK