AC442 · Unit 7

AC442 Unit 7 data quality worksheet example

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A card-charge extract of 17,036 rows from a composite winery's club software arrives with its faults intact. The AC442 Unit 7 data quality worksheet built on it records nine tests, what each found and what was done about it, whether removed, converted, flagged or left alone, and the 15,532 approved charges that survive tie to three ledger accounts.

What this page holds

Nine tests, each finding kept apart from its action, and a tie-out of 15,532 surviving charges to the ledger: an AC442 Unit 7 worksheet on one winery's club file. Searches like "ac 442 unit 7 assignment example", "ac442 unit 7 sample" and "ac442 unit 7 example" land here.

What a finished AC442 Unit 7 data quality worksheet looks like

A worksheet of nine numbered rows, a before-and-after panel and a tie-out block, about three pages. Each row gives the test, the rule used, the count and value of rows touched, the action and who was told. Row one removes 186 exact duplicates worth 26,412.40, created when one release batch was exported twice. Row two keeps 1,318 declined attempts in the file but excludes them from every total. Row three converts amounts stored as text with dollar signs and commas and turns 12 parenthesized refunds negative. Row six flags 23 charges worth 3,904.35 to members canceled before the release date and routes them, unchanged, to the club manager. Row nine records a price-range test that found nothing. The tie-out adds club revenue of 2,318,760, shipping income of 187,340 and sales tax of 142,610 to 2,648,710.

How a AC442 Unit 7 example is structured

Rows follow the order the tests were run, and that order is argued: duplicates come out first so every later count is made on unique rows, and type conversion precedes any test comparing amounts or dates. Each row separates the finding from the action, because the unit grades the distinction between correcting a value, excluding a row from totals and merely flagging it for someone with authority. Nothing is deleted except true duplicates, and the worksheet says why declined attempts stay: they are evidence of the retry rule working. Rows whose resolution belongs to someone else, canceled members and orphan IDs, name that person and leave the values untouched. A test that found nothing still gets its row. The before-and-after panel and the tie-out close the worksheet, turning the cleaning into a figure an accountant can verify against the ledger.

Nine tests in the order run

Duplicates, declines, text amounts, dates, state codes, canceled members, orphan IDs, blank tiers and price range, with the sequence itself justified.

Correct, exclude or flag

Every row states which of three actions was taken, so a mechanical conversion is never confused with a decision that belongs to the record's owner.

Declined attempts kept as evidence

The 1,318 refused charges stay in the file, outside every total, because they show the retry rule operating and a decline rate climbing by quarter.

A row for the test that found nothing

Charges outside each tier's price range were sought and none turned up, and the worksheet records that result as carefully as any other.

Tie-out to three accounts

Approved charges total 2,648,710.00, matching club revenue, shipping income and sales tax collected in the ledger once combined.

Where marks go in AC442 Unit 7

A clean file with no record of what changed is the costliest submission here, because the corrected extract alone cannot be distinguished from an invented one. Graders then check the actions. Deleting declined attempts, or rows for canceled members, destroys records someone else needs, and rubrics treat that as a control failure rather than tidying. Counts without dollar amounts leave materiality unknown. A worksheet whose surviving rows do not tie to the ledger, or that never attempts a tie-out, has not shown the cleaning preserved the population. Conversion steps are often skipped in the log because they feel mechanical, yet a refund in parentheses read as positive misstates the total by twice its amount. Leaving out tests that found nothing hides the scope of the review and draws smaller deductions.

Get a AC442 Unit 7 example written to your instructions

Forward the flawed extract your Unit 7 assignment supplies, untouched, with the rubric and any worksheet layout your instructor prescribes. Every fault is logged with rows, dollars and action, the survivors are tied to whatever control totals your data allows, and the worksheet is back within 24-48h. No fee is charged for a first custom sample.

AC442 Unit 7 questions, answered

Why keep the declined card attempts?

Because they record events that happened: the club tried to charge a member and the bank refused. Removing them would erase the evidence that the retry rule works and hide a rising decline rate the business needs to see. The worksheet keeps them in the file, excludes them from revenue totals, and explains that choice in a row of its own.

When is changing a value acceptable?

When the change is mechanical and reversible, such as converting text amounts to numbers or normalizing state names to two-letter codes, and when it is logged with a count. Altering a value that carries business meaning, such as a member's status or an amount charged, belongs to the person who owns that record, so the worksheet flags it instead.

What if my extract has faults the sample does not?

Every AC442 file is seeded differently, so the worksheet is rebuilt on the faults your data actually contains. The structure carries over: tests in a justified order, finding separated from action, counts and dollars on every row, and a tie-out at the end. Faults unique to your file get rows of their own with the same columns.