x̅ and s chart
Statistics visual representation / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Xbar and s chart?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
In statistical quality control, the and s chart is a type of control chart used to monitor variables data when samples are collected at regular intervals from a business or industrial process.[1] This is connected to traditional statistical quality control (SQC) and statistical process control (SPC). However, Woodall[2] noted that "I believe that the use of control charts and other monitoring methods should be referred to as “statistical process monitoring,” not “statistical process control (SPC).”"
Quick Facts x ¯ {\displaystyle {\bar {x}}} and s chart, Originally proposed by ...
and s chart | |
---|---|
Originally proposed by | Walter A. Shewhart |
Process observations | |
Rational subgroup size | {{{subgroupsize}}} |
Measurement type | Average quality characteristic uper unit |
Quality characteristic type | Variables data |
Underlying distribution | Normal distribution |
Performance | |
Size of shift to detect | ≥ 1.5σ |
Process variation chart | |
Center line | |
Upper control limit | |
Lower control limit | |
Plotted statistic | |
Process mean chart | |
Center line | |
Control limits | |
Plotted statistic |
Close