Assessor Resource

NWP610
Apply statistical methods for quality control and reliability

Assessment tool

Version 1.0
Issue Date: April 2024


This unit applies to personnel operating in a para-professional engineering role across a range of industries.

No licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication.

This unit of competency sets out the knowledge and skills required to apply statistical concepts and methods that are common to all engineering fields for the purpose of quality control. This includes averages, probability, frequency distributions, standard deviation, and quality control applications.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)

Prerequisites

Not applicable.

Employability Skills

This unit contains employability skills.



Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

The candidate should demonstrate the ability to:

apply statistical methods and use appropriate computer programs for quality control and reliability evaluation.

perform a range of statistical computation to obtain enumerated data on quality systems and reliability of outputs in different engineering contexts.

Context of and specific resources for assessment

Access to the workplace and resources including:

documentation that should normally be available in a water industry organisation

workplace specific equipment and technology

supervision and experienced team members to provide observations, feedback and third party reports

enterprise operating procedures and work allocation

relevant codes, standards, and government regulations.

Where applicable, physical resources should include equipment modified for people with disabilities.

Access must be provided to appropriate learning and/or assessment support when required.

Assessment processes and techniques must be culturally appropriate, and appropriate to the language and literacy capacity of the candidate and the work being performed.

Validity and sufficiency of evidence require that:

competency will need to be demonstrated over a period of time reflecting the scope of the role and the practical requirements of the workplace

where the assessment is part of a structured learning experience the evidence collected must relate to a number of performances assessed at different points in time and separated by further learning and practice

a decision of competence should only be made when the assessor has complete confidence in the person’s competence over time and in various contexts

all assessment that is part of a structured learning experience must include a combination of direct, indirect and supplementary evidence

where assessment is for the purpose of recognition (RCC/RPL), the evidence provided will need to be authenticated and show that it represents competency demonstrated over a period of time

assessment can be through simulated project-based activity and must include evidence relating to each of the elements in this unit.

In all cases where practical assessment is used it will be combined with targeted questioning to assess the underpinning knowledge. Questioning will be undertaken in a manner appropriate to the skill levels of the candidate, any cultural issues that may affect responses to the questions, and reflecting the requirements of the competency and the work being performed.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Required skills:

identify engineering situations that require solution using probability considerations

translate statistical data into engineering parameters

produce qualitative statistical modelling

calculation of mean, mode, deviation

Requiredknowledge:

statistical terms and statements relevant to engineering quality control

probability, permutations and combinations

frequency distribution: normal, rectangular, binomial (qualitative), poisson (qualitative)

cost analysis as part of system quality including scrap and rework issues, and customer returns

computer traceability systems for material and quality

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Statistical task must include:

probability

permutation

combinations

distribution

mean

median

mode

deviation

statistical modelling

Appropriate personnel may include:

supervisor

colleague

foreman

team leader

supervising engineer

teacher

Sources of computational data may include:

tables

graphs

Resources may include:

computer

scientific calculator

engineering tables and graphs

regulations and codes of practices

Features of a scientific calculator may include:

arithmetic functions

trigonometric functions

inverse trigonometric functions

exponentials and logarithmic functions

reciprocals

scientific number representation

engineering number representation

rectangular to polar conversions

Enterprise procedures may include:

the use of tools and equipment

instructions, including job sheets, cutting lists, plans, drawings and designs

reporting and communication

manufacturers' specifications and operational procedures

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Determine the statistical task through requests, design briefs or equivalent and clarify with the appropriate personnel. 
Seek expert advice with respect to the statistical task and according to enterprise procedures when appropriate. 
Consult appropriate personnel to ensure the work is co-ordinated effectively with others involved at the work site. 
Interpret and apply industry codes, regulations and technical documentation relevant to the statistical task. 
Identify and use sources of computational data. 
Make and record appropriate assumptions underlying the statistical task. 
Identify and obtain resources required and check as fit for purpose. 
Identify and use appropriate computer applications in computational sequences. 
Efficiently perform computations using statistical features of a scientific calculator. 
Perform statistical task and record results. 
Select methods for dealing with unexpected situations based on discussions with appropriate personnel, job specifications and enterprise procedures. 
Discuss and verify results with appropriate personnel. 
Present results as required from initial request or brief. 

Forms

Assessment Cover Sheet

NWP610 - Apply statistical methods for quality control and reliability
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

NWP610 - Apply statistical methods for quality control and reliability

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: