A Juarez, Mexico, manufacturer of roofing supplies has developed monthly forecasts for a family of products. Data for the 6-month period January to June are presented in the table below. There are 8 hours of production per day. This exercise only contains part b. Juarez has yet a sixth plan. A constant workforce of 7 is selected, with the remainder of demand filled by subcontracting. Evaluate this plan. The production rate per day = units. (Enter your response as a whole number.) Fill in the table below. (Enter your responses as whole numbers.) The total regular production cost = (Enter your response as a whole number.) The total subcontracting cost = (Enter your response as a whole number.) Total cost with plan 6 =. (Enter your response as a whole number.)