Hemisphere Electric may purchase equipment to manufacture a new line of wireless devices for home appliance control. The first cost will be $80,000, and the life is estimated at 6 years with a salvage value of $10,000. Different people in marketing have provided revenue estimates that the devices will generate. The estimates range from a low of $10,000 to a high of $20,000, with an average of $16,000 per year. If the MARR is 8% per year, use PW to determine if these different estimates will change the decision to purchase the equipment.