Problem
Klein Industries manufactures three types of portable air compressors: small, medium, and large, which have unit profits of $20.50, $34.00, and $42.00, respectively. The projected monthly sales are: 
 
                     Small               Medium           Large 
 Minimum       14,000              6,200                 2,600 
 Maximum      21,000             12,500            4,200 
 
 The  production process consists of three primary activities: bending and  forming, welding, and painting. The amount of time in minutes needed to  process each product in each department is shown below:
                                Small       Medium        Large             Available Time  
Bending/forming        0.4          0.7              0.8                 23,400 
 Welding                                           0.6                  1.0                         1.2                         23,400 
 Painting                                           1.4          2.6                        3.1                         46,800
How many of each type of air compressor should the company produce to maximize profit?
1)  Formulate and solve a linear optimization model using the auxiliary  variable cells method and write a short memo to the production manager  explaining the sensitivity information.
2)  Solve the model without the auxiliary variables and explain the  relationship between the reduced costs and the shadow prices found in  part 1.
The response must include a reference list. Using Times New Roman 12 pnt font, double-space, one-inch margins, and APA style of writing and citations.