 People arrive at a busy airport news kiosk at a rate that is uniformly distributed between 5 and 10 seconds. Most people buy only one paper which takes an average of 6 seconds but may be as little as 3 or as much as 9 seconds and 20% by 2 papers which takes between 6 and 12 seconds to buy. You want to model this using Simquik in Excel. First thing you need to do is draw a sketch. Here's a very simple process model. People enter the kiosk, they have to wait in line because there's usually somebody there ahead of them buying something, and then while they're waiting they need to decide they will buy one paper or two paper. They then go to the clerk, they either buy one paper which takes a relatively short amount of time, or they buy two papers which takes more time, and then once they get their paper they leave. Okay, I brought up an Excel workbook containing Simquik. I'm going to start by showing you what the model of that process looks like when you set it up in Simquik. Simquik on view model and it opens up, starts out with our simulation controls again where we put in the parameters that control the simulation and I'm going to leave that to you to figure out. We have an entrance and in this case it's named kiosk. I think I've mentioned that Simquik is very particular about how you name things. So be aware if you capitalize something, put an underline and one space, spell it differently it'll get you into trouble. So you should go through first of all and create the elements just making the names so that when you start to connect things you'll be able to see the correct names however you created them into dropdowns. Here in this kiosk we've got our arrival time and as you recall it was a uniform distribution between five and ten minutes and we're getting one person at a time. You could have groups come in two three or four but in our model we've got one person entering at a time and then the output from that entrance goes to a waiting line which is a buffer. You should almost always have a buffer between elements in your process. It just makes things work more smoothly it's kind of like grease. We have two workstations here in order to model the fact that it takes more time to buy two papers than to buy one paper you need two workstation elements in your SimQuik model. Here we just named them one paper with a uniform distribution between three and nine seconds and two papers with a uniform distribution between six and twelve. Remember if you click in the window and use the dropdown you can see the various types of distributions that you can use in your particular problem. We'll use the standard distributions and you just have to input the required parameters. We won't be using these custom distributions which you can create to get more elaborate models. You need to specify the output which element it goes to, how many objects come out of that particular workstation, and then the resources needed. This particular student forgot the resources in this particular situation. There has to be a clerk that mans these two workstations and that resource should be set up. I'll show you how to do that. In order to make the model work again we need the buffers and we created a waiting line. Once you enter you wait in line then you tell it the capacity for most cases is going to be unlimited but you may have a limited space in your waiting room and the initial number of objects can be set at zero or whatever you think may be there and you can actually put distributions in here in order to get some random values in those. Here it shows the output from the buffer is to check out which is the clerk that's going to ring up your purchase and one person at a time leaves the waiting line. This other buffer is the exit. When people finish buying they go into a buffer and you need to name it. The initial capacity is unlimited and nobody there to begin with and there's no output because that's the end of your model. We do have a decision point in this model. We're calling it checkout, could be whatever you want. You can see that the wedding line buffer goes to the checkout point and you make a decision either buy one paper and then 80% of the people are two papers 20% of the people and it shows you the destinations out of the decision point you go to the one paper workstation 80% of the time or the two papers workstation 20% of the time. So that's an overview of how you would set this up.