1.

A manager has been using a certain technique to forecast demand for project management software at her store. Actual demand and her corresponding predictions are shown below:

Month	Actual Demand	Managers Forecast
March	50	50
April	43	50
May	40	45
June	46	43
July	43	40

What is the manager's forecast error for April? Be sure to enter the whole number with no decimals along with the direction sign; for example, +8

2.

A manager has been using a certain technique to forecast demand for project management software at her store. Actual demand and her corresponding predictions are shown below:

Month	Actual Demand	Managers Forecast
March	50	50
April	41	50
May	40	45
June	46	43
July	43	40

If the manager would have used simple exponential smoothing with alpha = 0.2, what would the forecast for August be, assuming the simple exponential smoothing had produced a perfectly accurate forecast in March? Enter the number, with no more than 2 decimal places--that is, round to 2 places after the decimal; for example, 54.34

3.Which of the following statements are true?

I. Qualitative forecasting techniques are generally used for longer-term decision making and longer term planning horizons when compared to most quantitative techniques.

II. A company must select either qualitative forecasting only or quantitative forecasting only so that the company is always consistent.

III. Quantitative forecasting techniques require relevant past data to predict the future.

4.In Joes job shop, effective capacity is 80 percent of design capacity, while actual output is 175 units a week. If design capacity is 250 units a week, what is the efficiency of this job shop? Enter the number with ONE DECIMAL IN THE TENTHS SPACE. INCLUDE the % sign; for example, 25.5%

5.Which of the following statements is (are) true?

I Effective capacity of a system is expected to be GREATER than its design capacity.

II. When determining a break even quantity, if your answer is a decimal, then you should round the number up.

III. A waiting line is also known as a queue.

Select one or more:

a. III only

b. I and II

c. I, II, and III

d. I only

e. II and III

6.Shiny Gator Car Wash cannot meet demand with its current set of automatic car wash machines. Shiny Gator is considering 2 new car wash machines to help meet demand. Machine A which can wash only and Machine B which can wash and hot wax. Machine A costs $30,000 and Machine B costs $60,000. The company estimates its cost per car wash (which includes water, soap, chemicals etc.) for Machine A will be $8 and Machine B will be $7. The revenue per wash for A will be $12, B will be $13 (hot wax brings in more revenue).

Machine B needs to wash how many more cars than Machine A in order to breakeven? Enter the whole number only NO COMMAS: for example, 10000

7.

Drivers Donuts is a bakery and coffee shop which depends on morning commuters for 80% of its daily business. During the morning rush from 5:30 AM to 8:30 AM, an average of 35 cars arrive at the Drivers Donuts drive-through lane every hour, to purchase donuts and coffee through a single store window. The employee who staffs that window can serve each car in an average of 90 seconds, although this speed is partially due to the fact that a second employee talks to the car behind the one being served, inputting that cars order so that the window employee knows exactly what they want and how much they should pay when it is the second cars turn to be served. Without that assistance, it takes the window employee an average of two minutes to serve any car, which is the practice outside of the morning rush hours, when customer traffic in the drive-through lane drops to an average of 4 cars an hour. Assuming that Drivers Donuts drive-through lane meets the assumptions of the M/M/1 model, please answer the following questions.

If a car arrives between 1:00 PM and 2:00 PM, on average how many minutes does that car spend in the drive-through lane purchasing from Drivers Donuts? Enter the number with no more than one decimal place, such as 4.2. DO NOT TYPE the word MINUTES after the number.

8.An average of 25 customers travel between Departments A and B each day. Unfortunately, Department C is located between Departments A and B, and 5 customers travel between Department C and Department A, while none travel between C and B. What is the load-distance score of this three department layout?

Select one or more:

a. 55

b. none of these

c. 75

d. 100

e. 30