Kristen’s Cookies
A1) We have analysed the case from two perspectives
a) The total time in the first scenario is 26 mins (6 mins for washing, 2 mins for spooning, 10 mins for baking, 8 mins for cooling, packing and selling) if the order is placed when there is a pending order/order under process.
b) In case, the order comes in at or after the wash, mix and spoon stage, it would take 26 + 10 mins (baking time). Hence, it would take 36 mins to fill in a rush order.
A2) If I operate my cookie shop every 4 hours a night, I would be able to produce to 22 dozen of cookies. Given that 4 hours= 240 mins and we start at time t=0, I would be able to complete the first batch of cookies at t=26 mins, second batch at 36 mins, third batch at 46 mins and so on. Since every dozen takes 10 mins to process, we would have approximately about 22 dozens at the end of 236 mins (approximately equal to 240 mins).
A3) It would take me 8 minutes to wash, mix and spoon while her roommate would take 4 minutes to set the oven, pack and process the payment. That would make it a total of 12 mins per order.
A4) Since we are considering only labour and raw materials cost here, we would take into consideration the time we have spent doing labor. For the first one dozen, we take 12 minutes, for the second dozen we take 17 mins and for the third we take 22 mins.
Let us assume that are time is worth $12 per hour. Our labor costs work out to
We could afford a discount on the second and third dozen of cookies.
A5) Since we have space for only one tray in the oven, we could use the other tray to spoon and fill in the tray. Essentially, a minimum of two trays and one electric mixer is sufficient.
A6) As per our observations, the main issue of bottleneck lies in the oven. In case another oven is included in the production plan, the output could be increased by 1.25 dozens per hour. Hence, we would get 6.75 dozens per