Sales and operations planning | Operations Management homework help

1) Chapter 10, g, Case Study #8:   Review the ms-excel file enclosed in this email.   The file has the answers to the case study for Chapter 10.   Answer the following questions that pertain to the case study:
      a)  What data is the critical piece of information for this case study? (Sales forecast, Actual Workers, Hiring, Layoffs)  Explain why?
      b) Describe why having a Sales and Operations Planning process is essential to managing a business.
2) Classroom Assignment #8:  Write a one-page essay on how the Retail Industry manages its inventory throughout the calendar year

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