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Elements and Performance Criteria

  1. Determine job requirements
  2. Comply with work health and safety (WHS) requirements at all times
  3. Identify job requirements from specifications, drawings, job sheets or work instructions
  4. Read and construct graphs from given or determined data
  5. Analyse data with respect to emerging trends
  6. Construct graphs as required from data and draw with respect to scale and accepted method
  7. Interpret significant features of graphical representation
  8. Perform basic statistical calculations
  9. Calculate standard deviation
  10. Apply application of standard deviation and limits to process improvement techniques

Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.

Features of graphical representations include one (1) or more of the following:

limit lines

gradients (straight line graphs)

intercepts

maximum and minimum values

Graphs include one (1) or more of the following:

histograms

control charts

straight line graphs

parabolic graphs

Process improvement techniques include the following:

techniques in which error rates are mathematically calculated and recorded, including three sigma and six sigma

NOTE: This unit gives the underpinning calculation skill for these techniques and does not cover the implementation or use of three or six sigma systems