You are planning an audit sample for confirmation of accounts receivable. The aged trial balance of receivables after removal of individually significant items has a remaining population of \($2,000,000.\) Assume that you have concluded that a tolerable error of \($100,000\) is appropriate in the circumstances and that you believe a moderate assessed level of control risk and moderate reliance on analytical procedures are appropriate.

Required:

a. What sample size would you use for confirmation of accounts receivable?

b. How would you decide the assessed level of control risk or other procedures risk such as analytical procedures?