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MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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In each of the following situations, indicate whether Walters, CPA is using unrestricted random (UR), systematic random (SR). haphazard (H), or block (B) selection. Walters created a list of all sales invoices to verify that they were supported by the appropriate shipping documents Invoice number 15 1 was selected first for 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 Sales invoices are commonly stored in a filing cabinet during the 30-day return period before being input in the company's database 4. 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 T&T Company's purchase orders are already pre-numbered and listed in numerical order within the company's database. As a result, 5. 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
Transcribed Image Text:In each of the following situations, indicate whether Walters, CPA is using unrestricted random (UR), systematic random (SR). haphazard (H), or block (B) selection. Walters created a list of all sales invoices to verify that they were supported by the appropriate shipping documents Invoice number 15 1 was selected first for 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 Sales invoices are commonly stored in a filing cabinet during the 30-day return period before being input in the company's database 4. 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 T&T Company's purchase orders are already pre-numbered and listed in numerical order within the company's database. As a result, 5. 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
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