Consider the nine activities that follow. 1. Microsoft: Developing computer coding for a new spreadsheet package 2. General Mills: Painting the office of a maintenance supervisor at a plant that produces cereal 3. Mayo Clinic: Examining a new patient 4. American Airlines: The 90 minutes that a Boeing 757 sits idle on the ground between flights 5. Office Depot: Moving cases of paper from one location to another in the same warehouse 6. Rolex: Attaching a watch band to the watch's face 7. United States Postal Service: Reprocessing mail that had been sorted incorrectly on a malfunctioning sorting machine. 8. Fidelity Investments: Correcting errors made by company personnel in customer accounts 9. Marriott: Upgrading the quality of bedding used at hotels in very competitive marketplaces 10. Dell Computer: Re-working defective units found during quality control inspection Required: Categorize each of the activities as either value-added or non-value-added for the companies noted.