Case Questions1.How much does the re-cleaning cost Nicky per year? Show all mathematical calculations.2.If everyone is trained, how much will the training cost? How much will training cost if only the group with the most errors is trained? Show costs in a spreadsheet and all mathematical calculations.3.If everyone is trained, what is the cost savings for the first year? If only the group with the highest re-cleaning requirements is trained, what is the cost savings for the first year? Show all mathematical calculations.4.What is your recommendation? Should just the group with the most re-cleanings be trained or should both groups be trained? Provide a rationale for your recommendation. Show any mathematical calculations used.5.Let’s back up and assume that employees had the KSAs needed to clean the offices effectively. What other factors might you look at as potential causes of the re-cleaning problem?