4 5 Baker Manufacturing Company forecasts the following demand for a product (in thousands of units) over the next five years. Year Forecast Demand 129 130 142 144 143 Currently the manufacturer has seven machines that operate on a two shift (eight hours each) basis Twenty days per year are available for scheduled maintenance of equipment Assume there are 250 workdays to a year each manufactured good takes 24 minutes to produce a. What is the effective capacity of the factory? Round your answer down to the nearest whole number and use this answer in subsequent computations unts/year b. Given the five year forecast, how much extra capacity is needed each year? Round your answers to the nearest whole number. Year 1 3 4 Extra capacity needed (units) c. Does the firm need to buy more machines? If so, how many? When? If your answer is zero, enter "0". Round your answers up to the nearest whole number, Year 3 Additional machines needed 4 2