Spreadsheet The Greyhound Company is considering changing its current inventory.control system for electronic picture frames. The information regarding one e trame is given below: Average demand = 160 unity/week Lead time 5 weeks Order cont - $80/order Unut cost $80 Carrying change rate 0.065 Desired service level 90 percent Standard deviation of weekly demand. 45 Number of weeks per year S2 Use the FPS Safety Stock Excel template in Mind Tap to computer and M for a fixed period inventory system model with and without safety stock. Use the rounded to Value in your calculations. Use Appendix A to determine 2-value. Round 2-value to two decimal places. Do not round intermediate calculations. Round your answer for up to the nearest whole number and round your answer for M to the nearest whole number T: weeks M