Benford's law, a threshold band test and a duplicate search, run across every payment one composite distributor made, complete an AC312 Unit 6 exception testing problem. Searches like "ac 312 unit 6 assignment example", "ac312 unit 6 sample" and "ac312 unit 6 example" land here.
What a finished AC312 Unit 6 exception testing problem looks like
Three test sections, each with its definition, its result table and a short conclusion, then a combined exception list. The first applies Benford's first-digit test to the 39,412 payments of ten dollars or more. Overall conformity is close, with a mean absolute deviation of 0.0029, yet the digit 9 leads 5.9 percent of amounts against an expected 4.6, a z-statistic near 12.6. The second test explains why: 612 payments sit in the band from 9,500 to 9,999.99, just under the 10,000 approval limit, against 188 in the band below it. The third searches for duplicates by vendor, amount and near-identical invoice numbers within thirty days, flagging 63 pairs; 41 are recurring charges such as rent, and 22, totaling 58,730.44, remain unexplained. The exception list carries every flagged row forward.
How a AC312 Unit 6 example is structured
Each test is defined before its result appears, because an exception is only meaningful against a rule written in advance. The definitions state the population, the field tested, the threshold and the source of that threshold, such as the conformity ranges published for first-digit tests or the company's own approval limit. The tests are ordered so each one explains the last: Benford identifies which digit misbehaves, the band test locates the payments behind it, and the duplicate search examines a different risk across the same rows. Results sit in tables with expected and observed values side by side. Each conclusion separates what the test established from what it only suggests. The combined exception list closes the problem with one row per flagged item, its test, its status and the account involved.
Rules written first
Population, field, threshold and the source of each threshold, stated before any result. A row is exceptional only against a rule that existed before the row was found.
First digits across 39,412 payments
Close conformity overall at a deviation of 0.0029, while the digit 9 runs well above its expected 4.6 percent. The problem reports both results and explains why both matter.
Just under the approval limit
The band test finds the payments behind the excess nines, clustered below the 10,000 limit in a pattern consistent with purchases split to avoid a second approval.
Duplicates, exact and near
Same vendor, same amount, invoice numbers differing by one character, paid within thirty days. 63 pairs flagged, 41 of them explained as rent and installments.
The exception list
Every flagged row carried forward with its test, status and account, the unexplained duplicate pairs among them as amounts possibly recoverable from vendors.
Where marks go in AC312 Unit 6
Declaring the population clean because the overall Benford statistic conforms loses the most, since the digit-level result is where the finding lives. Graders read that as trusting a summary over the evidence. Calling the cluster below 10,000 fraud, rather than a pattern consistent with split purchases that needs review, overstates the test. Duplicate searches that flag exact matches only, missing invoice numbers with a transposed character, lose points for a weak definition, and so do searches that never separate recurring charges from true duplicates. Thresholds stated without a source cost method marks. An exception list without the account each item affects leaves out the accounting consequence the course grades. Arithmetic in the expected-count column is checked in every section.
Get a AC312 Unit 6 example written to your instructions
Send the population your Unit 6 problem supplies, the tests it names and any approval limits or thresholds it defines, along with the rubric. The three tests, their tables and the exception list come back within 24-48h, together with the query or workbook that produced them. A first custom sample is free.
AC312 Unit 6 questions, answered
Why can the overall Benford test pass while one digit fails?
Because the overall statistic averages deviations across all nine digits, and eight digits conforming closely can hide a large deviation in the ninth. The AC312 sample reports both the mean absolute deviation and a z-statistic for each digit, so the excess of nines is visible despite the passing summary. Graders in this unit often look for exactly that second layer.
Does a Benford deviation prove manipulation?
No. It shows the data differ from an expected distribution, which can have ordinary causes, such as prices clustered at particular amounts or a single recurring charge. The sample treats the excess of nines as a lead and follows it with the band test, which locates the payments involved. Conclusions about intent would need evidence the ledger does not hold.
How are near-duplicate invoice numbers found?
By comparing invoice numbers after removing spaces and punctuation, and by testing whether two numbers differ by a single character or a transposition. Pairs are limited to the same vendor and amount within a set window, here thirty days, which keeps the list reviewable. The sample states the matching rule precisely, so another person could reproduce the 63 pairs.