Class 2 - Run Chart Demonstration

Class 2 - Run Chart Demonstration - Flow Diagram Start Is...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Flow Diagram Page 1 Start Is LOCATION stable? NO YES Is VARIATION stable? NO YES Repeating Patterns? YES NO Outlier Values? YES NO End Process is Stable Data are NOT from a single Stable Process
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Guidelines Page 2 Guidelines for determining process stability A stable process has only constant random variation. Examine the Run Chart and look for changes in (1) the location of the center of the variability and (2) the spread or magnitude of the variability and (3) look for any repeating patterns in the data (These may be cycles or saw-toothed patterns) and (4) look for outlier values
Background image of page 2
Run Chart Page 3 Mean Std. Dev. Slope Saw Pattern, yes/no Taper, (0, +1, -1) 1st half 40 10 0 no 0 2nd half 40 10 0 Run Chart Standard Average Value Mean Mean+Saw Observation Saw Index Deviation 1.05 42.9 41.4 40 40 1 2 10 42.9 34.61 40 40 2 -2 10 42.9 49.94 40 40 3 2 10 42.9 37.98 40 40 4 -2 10 42.9 41.04 40 40 5 2 10 42.9 51.29 40 40 6 -2 10 42.9 49.01 40 40 7 2 10 42.9 18.86 40 40 8 -2 10 42.9 46.37 40 40 9 2 10 42.9
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 06/20/2011 for the course MGMT 524 taught by Professor Andrews,r during the Spring '08 term at VCU.

Page1 / 12

Class 2 - Run Chart Demonstration - Flow Diagram Start Is...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online