Identifying the time of a step change in a normal process variance

Thomas R. Samuel*, Joseph J. Pignatiello, James A. Calvin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

73 Scopus citations
Original languageEnglish (US)
Pages (from-to)529-538
Number of pages10
JournalQuality Engineering
Issue number3
StatePublished - 1998
Externally publishedYes


  • Change point estimation
  • Dispersion control charts
  • Process improvement
  • Quality control
  • R chart
  • S chart
  • Special-cause identification
  • Statistical process control

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Industrial and Manufacturing Engineering

Cite this