You are involved in an attribute sampling plan for testing the proper execution of vouchers in the Hickox Company. You elect to use the attributes shown in Figure 9-9 for testing. Your planned and actual test results differ from those shown in Figure 9-9 as follows:

1. Planned reliability for attributes 1 to 4 is 95 percent.

2. The expected population occurrence rate in each case is 0.5 percent more.

3. The actual occurrences for attributes 3 and 6 totaled 4 and 5, respectively.

Required:

a. Prepare a schedule showing planned and actual test results.

b. Comment on your findings.

Transcribed Image Text:

Prepared by Reviewed by RC. P Date 8/2/21 Date 8/14/1 Objective Sampling unli Selection of sample Sampling for the Purchases Transactions 12/31/X1 Proper execution of purchases transactions Vouchers - Population 18.000-numbers 66245 to 84244 Random, using random number tables with blind stab start Planned Test Desd Upper Precision Kell abilis 191 90 Sample Results Estimated Population Occurrence Sample Star Number Excurrence Upper Precision Limit 131 bule Description of Attribute 1. Approved purchase order. receiving report and vendors invoice for each voucher. 2. Vendors invoice agrees with. purchase order and re- ceiving report 3. Vandor's invoice is arithmetically correct I Coding on invoice (account) Nassification) is correct 5. Voucher vendor's Invoice agrees with 6. Voucher contains evidence. of internal verification. of correctnent 7. Voucher is approved by authorized personnel 35: 90 g 20 140 90. 20 B 24 1.5 15 ist Pa