What is an auditor's evaluation of a statistical sample for attributes when a test of 100 documents results in four deviations if the tolerable rate of deviation is 5%,the expected population deviation rate is 3%,and the allowance for sampling risk is 2%?
A) Accept the sample results as support for planned reliance on the control because the tolerable rate of deviation less then allowance for sampling risk equals the expected population deviation rate.
B) Modify planned reliance on the control because the sample rate of deviation plus the allowance for sampling risk exceeds the tolerable rate of deviation.
C) Modify planned reliance on the control because the tolerable rate of deviation plus the allowance for sampling risk exceeds the expected population deviation rate.
D) Accept the sample results as support for planned reliance on the control because the sample rate of deviation plus the allowance for sampling risk exceeds the tolerable rate of deviation.

Question

Quizplus · Accepted Answer

The auditor should calculate the upper limit rate of deviation (ULRD) using the formula ULRD = sample deviation rate + allowance for sampling risk. 
In this case, the sample deviation rate is 4%, the allowance for sampling risk is 2%, so the ULRD is 6%. 
Since the ULRD exceeds the tolerable rate of deviation of 5%, planned reliance on the control should be modified.

What Is an Auditor's Evaluation of a Statistical Sample for Attributes