WorldBiz operates divisions arcund the world, its European division-EuroBiz (EB)-has recently reported the following information 10 you ot Woridilic's head office. You are trying to decide whether to direct your internal audit staff to investigate more closely. Required: 1-a. For each of the years, calculate the proportion of gross accounts recewsble estimated to be uncalectible as allowed for in the Allowance for Doubtful Accounts. 1. Which year does not align with the other two? 2-a. For eech of the years, calculate the proportion of Net Sales Revenue that Bad Debt Expense represents. 2.b. Which year does not align with the other two? 3.a. Did customers take oreater for lesser) advantage of soles dscounts in Year 5 then in Year 4 and Year 3 ? 3-b. Does this indicate customers were more for less) lhely to promplly pay their belances in Vear 5 as compared to prior years? 4- a. Calculate the merage days to collect in Veer 5 and Year 4 4-b. Does this measure indicate customers paid their balances faster for slowen in Year 5 as compared to Year 4 ? 5. Indicate (yes or no) whether you should direct your internal auds staft to imvestigate fo's recelvables manogenent practices more closely