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An electronics manufacturing company produces circuit boards using the four-step sequential process shown below. There is a single employee at each step. Step Processing Time per Circuit Board Component install 2 minutes Solder 2.5 minutes Inspection 1.5 minutes Test 3 minutes Assume demand is unlimited. To which step should an additional employee be assigned to increase process capacity? Hint: this question basically asks who is the bottle neck in a different way. By definition, bottle neck is the resource with lowest capacity. Who has the lowest capacity? – the one with longest processing time. This question actually does not require calculations.

During the Elicitation and Collaboration, a business analyst (BA) is conducting a series of workshops with stakeholders to uncover detailed business needs. After the workshops, stakeholders express confusion about some of the documented requirements. What should BA do?

The capacity of a resource is the average flow rate of that resource. Hint: think about that the demand rate defines the flow rate when the demand is low.

One employee is in charge of the following activities at a bank’s drive-through: Activity Activity Time per Customer Greet customer 3 seconds Take order 5 seconds Process order 3 minutes Print receipt 12 seconds What is the capacity (in customers per hour) of the employee? Hint: this is one resource. What is the total activity time per customer? 1 minute =60 seconds. Capacity = 1/processing time (per second). Cpacity per hour = capacity per second * “how many seconds per hour”.

8. What is the empirical formula of an oxide of nitrogen that contains 63.64% nitrogen by mass? a. NO b. NO2 c. N2O d. N2O5

A resource with a utilization of less than 100% cannot be the bottleneck. Hint: Alex Dua asked this question in class. Again, think about low demand rate.

Which of the following statements about a process is TRUE? Hint: why would I allow you to use the calculator??? I thought we also learned process diagrams.

What is the purpose of the Direct Antiglobulin Test (DAT)?

Is the integrand given below proper or improper? [type] What technique(s) of integration would be used to evaluate the integral? [techniques]

A clinical trial accepts 2000 new patients each month. Half of the patients are taking a placebo for 3 months. How many patients are taking the placebo on average at any given time? Hint: use Little’s Law: Inventory = Flow Rate * Flow time. Flow rate = number of patients per unit of time (month). How many patients each month? Note: among these patients, how many are taking the placebo? Flow time: how many months here?