1.1 evaluate the two basic types of inspection used in sampling for process control

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1.1 evaluate the two basic types of inspection used in sampling for process control

Unit 36: Statistical Process Control Unit code: K/601/1460

Learning outcomes

On successful completion of

this unit a learner will:

Assessment criteria for pass

The learner can:

LO1 Understand the basic types,

variations and characteristics

of statistical techniques used

in process control

1.1 evaluate the two basic types of inspection used in

sampling for process control

1.2 describe the significance of natural and assignable

causes of variation

1.3 use selected data to construct frequency distribution

and calculate mean, range and standard deviation

1.4 relate the characteristics of the normal curve to the

distribution of the means of small samples

LO2 Be able to select data,

construct process control

charts and initiate a control

program for a specified

application

2.1 select and group sample data based on variable

inspection and attributable inspection and calculate

appropriate control chart limits

2.2 construct control charts for variables, rejects per unit

and percentage defectives per batch

2.3 initiate a control program for a specified application

LO3 Be able to evaluate process

capability against a given

product or component

quality requirement using

modified control chart limits

3.1 describe process capability

3.2 investigate the purpose of modified control chart limits

3.3 evaluate processes against a given quality requirement

LO4 Be able to analyse types of

variation within a process

and record information on

that variation

4.1 analyse a range of processes for types of variation

4.2 record information on variation from a process.