O'Reilly logo

Fundamentals of Quality Control and Improvement, 4th Edition by Amitava Mitra

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

7Control Charts for Variables

  1. 7-1 Introduction and chapter objectives
  2. 7-2 Selection of characteristics for investigation
  3. 7-3 Preliminary decisions
  4. 7-4 Control charts for the mean and range
  5. 7-5 Control charts for the mean and standard deviation
  6. 7-6 Control charts for individual units
  7. 7-7 Control charts for short production runs
  8. 7-8 Other control charts
  9. 7-9 Risk-adjusted control charts
  10. 7-10 Multivariate control charts
  11. Summary
Symbols
μ Process (or population) mean ki Standardized value for range of sample number i
σ Process (or population) standard deviation σ0 Target or standard value of process standard deviation
img Estimate of process standard deviation img Standard deviation of the sample mean
img Sample average
R Sample range Sm Cumulative sum at sample number m
s Sample standard deviation w Span, or width, in calculation of moving average
n Sample or subgroup size
Xi ith observation img Mean of sample means
W Relative range img Mean of sample ranges
g Number of ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required