Prepare a memo to Ursula Sykes advising whether you believe the estimate of 1/4 of 1% of credit sales appears reasonable. Also include what you have determined to be the balance in the Allowance for Doubtful Accounts at December 31, 2008. Recommend any possible changes that you feel may be necessary in accounting for uncollectible receivables. Support your findings.

No thanks.
For starters, this should be under Homework. Also, you should do it yourself, and only ask here if you get stuck in one area.
Or maybe switch majors.