2. Assume a scenario with one oven and where all orders are for one dozen cookies. Kristen schemes up to remove the friend from the business. In this case, how many dozens of cookies can Kristen deliver in an evening of 4 hours?
The Production Process Baking cookies is simple: place all the ingredients in a mixing bowl and mix them; spoon the cookie dough onto a tray; put the cookies into the oven; bake them; take the tray of cookies out of the oven; let the cookies cool; and, finally, take the cookies off the tray and carefully pack them in a box. You and your roommate already own all the necessary capital equipment: a high-capacity professional-grade electric mixer, cookie trays, and spoons. Your apartment has a small oven that will hold one tray at a time. Your landlord pays for all the electricity. The variable costs, therefore, are merely the cost of the ingredients (estimated to be $0.60/ dozen), the cost of the box in which the cookies are packed (\$0.10 per box; each box holds a dozen cookies), and your time (what value do you place on your time?). A detailed examination of the production process follows. You and your roommate have timed the necessary operations. The first step is to take an order, which will be fast and accurate, since your roommate has devised a method using the campus e-mail system. When an order arrives, your roommate first reads and prints the email and sends a reply to the customer stating when the order will be ready for pickup and takes the printed order to the kitchen. This order processing step takes your roommate one minute. Zoom in When an order arrives in the kitchen, the first production step is to place the specified ingredients in the electric mixer's bowl and turn on the mixer to mix the ingredients. The electric mixer can hold and mix ingredients for up to three dozen cookies. You then spoon the cookies, one dozen at a time, onto a cookie tray. Adding the ingredients to the bowl and mixing takes 6 minutes, regardless of how many cookies are being made in the batch. That is, to mix enough dough and ingredients for three dozen cookies takes the same 6 minutes as for one dozen cookies. However, spooning the cookies onto the tray takes 2 minutes per tray. The next step, performed by your roommate, is to put the cookies in the oven and set the timer. The time to do this is negligible, and will be ignored in this analysis. The cookies bake for 10 minutes. Because the oven only holds one tray, a second dozen takes an additional 10 minutes to bake. Your roommate also performs the last steps of the process by first removing the cookies from the oven and putting them aside to cool for 5 minutes, then carefully packing them in a box and accepting payment. Removing the cookies from the oven takes a negligible amount of time, but it must be done promptly. It takes 2 minutes to pack each dozen and about 1 minute to accept payment for the order. This is the process you plan to use to produce cookies by the dozen at Kristen's Cookie Company. As experienced bakers know, a few simplifications were made in describing the actual cookie production process. For example, the first batch of cookies for the night requires preheating the oven. However, such complexities will be put aside for now. Begin your analysis by developing a process flow diagram of the cookie-making process