examination, followed by the invoices numbered 30, 45, 60, 75, 90, and so on until 40
invoices had been selected.
____ 2. To test the occurrence assertion regarding sales invoices, Walters randomly
selected invoices from the database storage disk for examination.
____ 3. To ensure proper authorization of payroll functions, Walters selected all
transactions during the last 5 days of each pay period to be included in the sample.
____ 4. Sales invoices are commonly stored in a filing cabinet during the 30-day return
period before being input in the company’s database. To ensure the 30-day return period
was not exceeded, Walters decided to pull a few invoices from each drawer until the
desired sample size was collected for examination.
____ 5. T&T Company’s purchase orders are already pre-numbered and listed in
numerical order within the company’s database. As a result, Walters was able to use one
of the firm’s computer programs to identify random numbers and match each number
with a corresponding purchase order to test the accuracy assertion.
____ 6. Using a random number table, Walters identified a series of 50 numbers and
located the corresponding employee identification number to select time cards for
examination.
____ 7. Walters used a computer listing of T&T’s credit memos, which totaled 2,400
items, to select 4 random starting points for examination. The remaining memos were
identified for testing by selecting every 24th item until the sample size reached 100
memos.
Below are descriptions of how key parameters are determined in an attributes sampling
plan. Match each description of a situation with the related term. Each parameter is
associated with only one description.
1. Expected population deviation rate. A. Determined judgmentally by the
auditor based on the acceptable level of control risk.
2. Sample size. B. Estimated based on prior audits or a
pilot sample of controls.
3. Population size. C. Determined after reviewing physical