SIX SIGMA GLOSSARY PROCESS IMPROVEMENT AND SIX SIGMA
 ONLINE COURSES FREE TRIAL SIX SIGMA FAQ BROCHURES LICENSES ENROLL
 GLOSSARY
 :: Online Courses :: Free Trial :: Six Sigma >> Glossary >> Calculators >> Reference Tables >> Book Reviews >> Black Belt ASQ :: FAQ :: Brochures :: Licenses :: Discounts
 Welcome to MiC Quality Six Sigma Resources MiC Quality Online Learning
 :: Home ::Six Sigma ::SIX SIGMA GLOSSARY: Median Control Charts :: CURRENT STUDENTS LOGIN
Median Control Charts

Median control charts are not generally recommended, but save calculation as long as the subgroup size is an odd number:

 Upper Control Limit Lower Control Limit :

Where the factors are:

 n 2 3 4 5 6 1.88 1.19 0.8 0.69 0.55

It is not usual to use range charts with median charts, because it defeats the purpose of simple calculation. All the data values from the subgroup may be plotted on the chart to indicate the spread:

 The selection, design and use of control charts is covered in the MiC Quality courses Statistical Process Control and Advanced Statistical Process Control. Try out our courses by taking the first module of the Primer in Statistics free of charge.
[SIX SIGMA GLOSSARY ALPHABETICAL INDEX] [SIX SIGMA GLOSSARY INDEX OF TOPICS] [Top]

MiC Quality Courses
 :: Six Sigma Primer :: Primer in Statistics :: Advanced Statistics :: Statistical Process Control SPC :: Advanced SPC :: Design of Experiments :: Advanced DOE :: Measurement Systems Analysis MSA/ Gage R&R Primer in Statistics FREE First Module "Introduction to Statistics" Primer in Statistics FREE Reference Booklet FREE Excel Primer