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Shewhart individuals control chart. In statistical quality control, the individual/moving-range chart is a type of control chart used to monitor variables data from a business or industrial process for which it is impractical to use rational subgroups. [ 1] The chart is necessary in the following situations: [ 2]: 231.
Nelson rules are a method in process control of determining whether some measured variable is out of control (unpredictable versus consistent). Rules for detecting "out-of-control" or non-random conditions were first postulated by Walter A. Shewhart [ 1] in the 1920s. The Nelson rules were first published in the October 1984 issue of the ...
The control limits for this chart type are ¯ ¯ (¯) where ¯ is the estimate of the long-term process mean established during control-chart setup. [2]: 268 Naturally, if the lower control limit is less than or equal to zero, process observations only need be plotted against the upper control limit. Note that observations of proportion ...
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Richard E. Petty and John Cacioppo proposed a dual process theory focused in the field of social psychology in 1986. Their theory is called the elaboration likelihood model of persuasion. In their theory, there are two different routes to persuasion in making decisions. The first route is known as the central route and this takes place when a ...
Control chart. Histogram. Pareto chart. Scatter diagram. Flow chart. Run chart. The seven basic tools of quality are a fixed set of visual exercises identified as being most helpful in troubleshooting issues related to quality. [ 1] They are called basic because they are suitable for people with little formal training in statistics and because ...
The PRISMA flow diagram, depicting the flow of information through the different phases of a systematic review. PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) is an evidence-based minimum set of items aimed at helping scientific authors to report a wide array of systematic reviews and meta-analyses, primarily used to assess the benefits and harms of a health care ...
Technicolor. "Technicolor is natural color" Paul Whiteman stars in an ad for his film King of Jazz from The Film Daily, 1930. Technicolor is a series of color motion picture processes, the first version dating back to 1916, [ 1] and followed by improved versions over several decades. Definitive Technicolor movies using three black-and-white ...