Today is is September 2, 2019, You are in the process of constructing an aggregate production plan for 2020. The regular production in Quarter 4 of 2019 is estimated to be 1900 units. The inventory at the beginning of Quarter 1 of 2020 is estimated to be 80 units. The forecasted demand for Quarter 1 through Quarter 4 are 1400, 1700, 2400 and 2100, respectively. Overtime production will not be available in Quarter 1 and Quarter 2 of 2020. If the regular production in Quarter 1 of 2020 is 1450 units, and the regular production in Quarter 2 of 2020 is 1600 units. What is the inventory at the beginning of Quarter 2 of 2020? What is the inventory at the beginning of Quarter 3 of 2020? What is the increase in regular production in Q2 of 2020? What is the increase in regular production in Q1 of 2020? Show brief calculation and explanation