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Course 188 · Work course 58

Audit an Inspection Sample and Release Decision

Build a fictional quality-inspection record with sample selection, boundary classifications, stated acceptance-rule application and a traceable release-or-hold memo.

Before you start

Paper or a local document and a basic calculator are enough; all required records are supplied.

Fractions, Measurement, and Technical Drawings See everything you’ll need

Free download · Original practice data · No external account required. Download the starter pack

What you’ll leave with

A fictional quality-inspection record with sample selection, boundary classifications, stated acceptance-rule application and a traceable release-or-hold memo.

Start course Start without an account. Sign in to save lesson progress across devices.

Your project

Start with the practice files. Build your project one lesson at a time.

Practice files are free without an account. Sign in to save your project record in My Proof: a description, checklist, and optional work link. Keep the original files in your own app or notebook; saving a project record does not upload them.

  1. Get your materialsDownload practice filesSupplied practice cases, a blank working record, complete lesson instructions, and annotated worked examples.
  2. Make your projectView the project checklist Work in your own notebook, document, or software. Use the supplied practice examples when you prefer.
  3. Keep a private recordSave a project record Sign in to save a description and checklist, then return to update them.
Course handbook

Know the route before you begin.

Here’s what you’ll need and what you’ll make. You can return to this guide during any lesson.

Who this is for

Learners ages 14+ exploring work and adults preparing for an entry-level or next-stage responsibility. Work eligibility, supervision and occupational requirements remain separate.

Prepare before lesson one
  • Paper or a local document and a basic calculator are enough; all required records are supplied.
  • Recommended preparation: Fractions, Measurement, and Technical Drawings. Use fictional information throughout.
Your final project

Finish with proof you can use.

A fictional quality-inspection record with sample selection, boundary classifications, stated acceptance-rule application and a traceable release-or-hold memo.

Save a project record in My Proof
See project checklist and review criteria

Keep your working files in your own notebook or software. Save a private description, checklist, and work link in My Proof.

What to include

  • Save the locked inspection-plan cover sheet; include the original-case decision evidence and a separate changed-case result.
  • Save an item-level inspection sheet with criterion reasons; include the original-case decision evidence and a separate changed-case result.
  • Save a two-measure summary and apply the unit-count gate; include the original-case decision evidence and a separate changed-case result.
  • Write a bounded conclusion without whole-lot guarantee; include the original-case decision evidence and a separate changed-case result.
  • Save the disposition trail and remaining signoff hold; include the original-case decision evidence and a separate changed-case result.
  • Save two-lot inspection/disposition packet and improvement; include the original-case decision evidence and a separate changed-case result.

Review and revise

Use these criteria to check your work and choose what to improve.

  • The final packet uses the supplied task-specific constraints and all six records agree.
  • Every result can be traced to an identifier, input, calculation or stated decision rule.
  • Changed-case practice updates dependent records and keeps holds or uncertainty visible.
  • The packet states the learner role, authority boundary and specific next verification needed before real work.
Three ideas to help you along the way
Three useful ideas

The rules behind the steps.

01

Match the task-specific constraint

A sample disposition is meaningful only when the lot identity, selection method, sample size and acceptance rule were set before seeing results.

02

Keep decisions traceable

Preserve the original records and identify which person or policy can authorize a change; a plausible assumption is not approval.

03

Test the handoff

The quality packet lets a reviewer reconstruct selection, specification, classification, rule application and authorized follow-up without inflating its claim.

What do these words mean?
Key words

Key terms worth knowing.

Lot
The defined population receiving a specific disposition.
Acceptance number
Maximum nonconforming-unit count allowed by this fictional plan.
Nonconforming unit
An item failing at least one stated criterion.
Defect finding
One observed criterion failure, distinct from a unit count.
Disposition
The authorized accept, hold, reject or follow-up state.
Your route

6 lessons.
One useful project.

Work in order the first time. Each lesson makes something the next lesson can use.

  1. 1
    Up next

    Freeze the lot sample and decision rule

    Save the locked inspection-plan cover sheet. Explain how a sample disposition is meaningful only when the lot identity, selection method, sample size and acceptance rule were set before seeing results.

  2. 2
    13 min

    Apply specifications to individual units

    Save an item-level inspection sheet with criterion reasons. Explain how a unit is nonconforming if any specified criterion fails; inclusive limits and missing evidence must be treated explicitly.

  3. 3
    10 min

    Count bad units separately from individual defects

    Save a two-measure summary and apply the unit-count gate. Explain how the specified count may concern units rather than defects; several failures on one unit do not necessarily increase the number of nonconforming units.

  4. 4
    10 min

    Keep uncertainty and sample limits visible

    Write a bounded conclusion without whole-lot guarantee. Explain how a measured sample can support its stated decision but cannot prove every unsampled unit conforms or turn missing measurements into passes.

  5. 5
    11 min

    Control reinspection and authorized disposition

    Save the disposition trail and remaining signoff hold. Explain how reinspection is a separate authorized event tied to its scope and rule; repeating samples until one passes conceals the original decision.

  6. 6
    15 min

    Assemble a traceable quality decision packet

    Save two-lot inspection/disposition packet and improvement. Explain how the quality packet lets a reviewer reconstruct selection, specification, classification, rule application and authorized follow-up without inflating its claim.

Use the tools

Tools to help you practice.

See all tools
ZIP · practice files

Audit an Inspection Sample and Release Decision practice files

Supplied practice cases, a blank working record, complete lesson instructions, and annotated worked examples.

Text worksheet

Your course project worksheet

A downloadable text worksheet with each lesson’s working output, space for your answers, and the shared final-project checklist. Save your own copy.

Source transparency

Sources and further study.

Explore the references behind the lessons and take your learning further. Source notes explain access and reuse.

19-4099.01 - Quality Control Analysts
Source & access notes · checked 2026-10-01

Occupational task and responsibility context; the exercise policies and quantities are original fictional inputs. Page title and relevant content inspected; no interactive controls or credential process tested.

Access: Readable official page retrieved with the web reader on 2026-10-01.

Reuse: All teaching cases, data, worked steps and questions are original. Link and limited paraphrase for context; no copied source exercises.

6.2.1. What is Acceptance Sampling?
Source & access notes · checked 2026-10-01

Public agency or educational context; no source exercises are copied and no simulated threshold is presented as an official rule. Page title and relevant content inspected; no interactive controls or credential process tested.

Access: Readable official page retrieved with the web reader on 2026-10-01.

Reuse: All teaching cases, data, worked steps and questions are original. Link and limited paraphrase for context; no copied source exercises.

6.2.2. What kinds of Lot Acceptance Sampling Plans (LASPs) are there?
Source & access notes · checked 2026-10-01

Public agency or educational context; no source exercises are copied and no simulated threshold is presented as an official rule. Page title and relevant content inspected; no interactive controls or credential process tested.

Access: Readable official page retrieved with the web reader on 2026-10-01.

Reuse: All teaching cases, data, worked steps and questions are original. Link and limited paraphrase for context; no copied source exercises.

Ready when you are

Start with the first useful move.

You’ll always know what to do, what to make, and where to go next.

Start lesson one