Sample Selection. Read each of the following cases. Explain for each case how you couldselect a sample having the best chance of being representative of the population using(1) unrestricted random selection and (2) systematic random selection. a. You need to select a sample of recorded cash disbursements. The client used two bankaccounts for general disbursements. Account 1 was used during January–August andissued checks numbered 3633–6632. Account 2 was used during May–December andissued checks numbered 0001–6000.b. You need to select a sample of purchase orders. The client issued prenumbered purchaseorders in the sequence 9000–13999. You realize that if you select five-digit random numbersfrom a table and look for numbers in this sequence, 95 percent of the random numbersyou scan will be discards because a table has 100,000 different five-digit randomnumbers. (The computer is down today!) How can you alter this sequence to reduce thenumber of instances in which the numbers in the table do not correspond to numbers inthe population?c. You need to select a sample of 100 perpetual inventory records so you can count thequantities while the stock clerks take the physical inventory. The perpetual records havebeen printed in a control list showing location, item description, and quantity. You have acopy of the list. It is 75 pages long, with 50 lines to a page (40 lines on the last page).
Sample Selection. Read each of the following cases. Explain for each case how you could
select a sample having the best chance of being representative of the population using
(1) unrestricted random selection and (2) systematic random selection.
a. You need to select a sample of recorded cash disbursements. The client used two bank
accounts for general disbursements. Account 1 was used during January–August and
issued checks numbered 3633–6632. Account 2 was used during May–December and
issued checks numbered 0001–6000.
b. You need to select a sample of purchase orders. The client issued prenumbered purchase
orders in the sequence 9000–13999. You realize that if you select five-digit random numbers
from a table and look for numbers in this sequence, 95 percent of the random numbers
you scan will be discards because a table has 100,000 different five-digit random
numbers. (The computer is down today!) How can you alter this sequence to reduce the
number of instances in which the numbers in the table do not correspond to numbers in
the population?
c. You need to select a sample of 100 perpetual inventory records so you can count the
quantities while the stock clerks take the physical inventory. The perpetual records have
been printed in a control list showing location, item description, and quantity. You have a
copy of the list. It is 75 pages long, with 50 lines to a page (40 lines on the last page).
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 1 images
