PERFORMING ROR ANALYSIS FOR 3D PRINTER AND IOT TECHNOLOGY Background Software used in 3D printer systems manufactured by Spectrum LASER COrp. is currently able to automatically develop hollows, shells, and "tree supports" to save development time. Network printing for use on multiple machines and at different iocations globally is available. New software, called jIT il, is being beta tested that will allow lloT-type (Industrial internet of Things) connections between machines at distant locations. When onboard monitoring sensors detect that a part is about to fail, or it is time to replace one of several high-profile parts, the JIT II software will automatically queue the parts manufacturing code onto a 30 printer that is detected to be locally idle or ready. The company believes it can design and produce the JIT II software, the 30 printers, and the accompanying computer equipment necessary to place this technology in a wide variety of harsh environments-chemically toxic to humans, in flight, underground in mines, on the ocean floor, in war-torn areas, etc. Hint, use Excel and Spreadsheet Information For this case, we will analyze the available computers that can provide the server function necessary to make this interlinking avallable and successful. The first cost and other parameter estimates, including expected contribution to annual net cash flow, are summarized below. Use spreadsheet to complete analysis in tje same spreadsheet prepare the cash flow series for each project A- If the MARR =10%, which server should be selected based on PW method to make the selection, (Hint: You have to use LCM for PW calculations) answer the below questions: 1. The PW for server 1 LCM cash flow: 2. The PW for server 2LCM cash flow = 3. The PW for server 3 LCM cash flow = 4. Based on the PW analysis which option should be selected ? B. The ROR for each option, answer the below questions: (enter the values in percentage format Exp: 24,34\%) 1. The ROR for server 1 over 4 years operation equal = 2. The ROR for server 2 over 4 years operation equal = 3. The ROR for server3 over 5 years operation equal = 4. From the net cash flow of alternative do we need incremental ROR analysis. { enter yes or no) ? C. Use incremental ROR analysis berween server 1 and server 3 to decide which is the best option at MARR in 10%. Answer the below questions 1. As per the Descartes rule of signs for the NCF between servers 183 , what is the maximum number of real number Delta it that exist? 2. As per the Norstroms criterion, is there a one real-positive Delta_f exist (enter yes or no)? 3. What is the value of Delta between server 1 \& 3 if exist? 4. Based on the incremental analysis which option we should select if incremental analysis is applicable