In an A-B-C system, the typical percentage of the number of items in inventory for A items is about:

In the A-B-C classification system, items which account for fifteen percent of the total dollar-volume fora majority of the inventory items would be classified as:

It is the process of shaping a material by forcing it, under pressure, to flow through a die.

It is the process of forming articles by placing raw materials (pellets, granules, etc.) into one end of a heated cylinder, heating the material in the heating chamber, and pushing it out the other end of the cylinder through a nozzle into a closed mold, where the molding material hardens to the configuration of the mold cavity.

In the A-B-C classification system, items which account for sixty percent of the total dollar-volume forfew inventory items would be classified as:

The purpose of “cycle counting” is to:

The EOQ model is most relevant for which one of the following?

Which is not a true assumption in the EOQ model …

Gourmet Pretzels bakes soft pretzels on an assembly line. It currently bakes 800 pretzels each 8-hourshift. If the production is increased to 1,200 pretzels each shift, the productivity increases by:

To eliminate bottlenecks, if any, a company should:

Averaging techniques are useful for:

Putting forecast errors into perspective is best done using

Moving average forecasting techniques do the following:

In order to increase the responsiveness of a forecast made using the moving average technique, the number of data points in the average should be:

Simple exponential smoothing is being used to forecast demand. The previous forecast of 66 turned outto be four units less than actual demand. The next forecast is 66.6, implying a smoothing constant, alpha,equal to:

Given an actual demand of 59, a previous forecast of 64, and an alpha of .3, what would the forecastfor the next period be using simple exponential smoothing?

Given an actual demand of 105, a forecasted value of 97, and an alpha of 4, the simple exponential smoothing forecast for the next period would be:

Daily usage is exactly 60 liters per day. Lead time is normally distributed with a mean of 10 days anda standard deviation of 2 days. What is the standard deviation of demand during lead time?

A firm has 43 units of a certain product on hand. Forecasts for the first two planning periods are 20 unitseach. A production quantity of 80 units is planned to be available in period 3. Customer orders are 22 forperiod 1 and 17 for period 2.

What is the projected on hand inventory at the end of period 2?

In a supermarket, the every Monday morning restocking of shelves by a bread vendor is an example of:

A cycle count program will usually require that 'A' items be counted:

The process of combining two or more substances into a single product

____________is a material that is absolutely dry, that is, it does not contain any moisture.

 Layout planning is required because of:

(I) Efficient operations

(II) Accidents or safety hazards

(III) New products or services

(IV) Morale problems

A production line is to be designed for a product whose completion requires 21 minutes of work. The factory works400 minutes per day. Can an assembly line with five workstations make 100 units per day?

Four hundred and eighty minutes of production time are available per day. The schedule calls for the productionof 80 units per day. Each unit of the product requires 30 minutes of work. What is the theoretical minimum number ofworkstations?

Which type of processing system tends to produce the most product variety?

The EOQ model is most relevant for which one of the following?

in the basic EOQ model, if D=60 per month, S=$12, H = $10 per unit per month, EOQ is:

A risk avoidant would want________safety stock.

In the basic EOQ model, if annual demand doubles, the effect on the EOQ is:

It is that basic forming process in which an appropriate amount of material is introduced into a heated mold that issubsequently closed under pressure.

A manager uses the following equation to predict monthly receipts: Yt = 40,000 + 150t. What is the forecast forJuly if t = 0 in April of this year?

A group of machines including supervisory computer control, automatic material handling, and possibly robots iscalled:

If average demand for an inventory item is 200 units per day, lead time is three days, and safety stock is 100 units,the reorder point is:

What quantity is available for commitment to new customers in either of the first two periods?

A process Layout problem consists of 4 departments, each of which can be assigned to one of four rooms. The number of different solutions to this problem is ____________. Although not all of them may have different material handling costs.

The central problem in product-oriented layout planning is:

A production line is to be designed for a Job with four tasks. The task times are 2.4 minutes, 1.4 minutes, 0.9minutes, and 1.7 minutes. The maximum cycle time is______ and the minimum cycle time is ______ minutes.

Under lot-for-lot, order sizes for component parts are essentially determined directly from which of the following?

In MRP, the gross requirements of a given component part are calculated from:

The major problem addressed by the process-oriented layout strategy is

Vivian Hung is considering the possibility of opening a small dress shop on Fairbanks Avenue, a fewblocks from Malayan University. She has located a good mall that attracts students. Her options are to opena small shop, a medium-sized shop, or no shop at all. The market for a dress shop can be good, average orbad. The probabilities for these possibilities are 0.2 for a good market and 0.5 for an average market.Building a small shop will give her a profit of $75,000 if there is a good market, $25,000 if there is anaverage market and a net loss of 40,000 if there is bad market. On the other hand, building a medium-sizedshop will provide her a profit of $100,000 if there is a good market, $35,000 if there is an average marketand a loss of $60,000 if there is bad market. Building no shop at all yields no loss and gain. What do yourecommend to Vivian?

For 52-53,

Suppose the entire cola industry produces only two colas. Given that person last purchased cola 1, there isa 90% chance that her next purchase will be cola 1. Given that a person last purchased cola 2, there is an80% chance that her next purchase will be cola 2.

If a person is currently a cola 2 purchaser, what is the probability that she will purchase cola 1 twopurchases from now?

For 52-53,

Suppose the entire cola industry produces only two colas. Given that person last purchased cola 1, there isa 90% chance that her next purchase will be cola 1. Given that a person last purchased cola 2, there is an80% chance that her next purchase will be cola 2.

If a person is currently a cola 1 purchaser, what is the probability that she will purchase cola 1 twopurchases from now?

Do “energy drinks” consumed before a race allow you to finish the race sooner? Sixteen different peoplewere randomly selected in groups of four to consume PowerAde, Propel, Gatorade, and water before a race.What would be the degrees of freedom of the F test statistics?

Which of the following is true regarding the process capability index Cpk?

Acceptance sampling’s primary purpose is to

Which of the following is true regarding the relationship between AOQ and the true population percent defective?

For 56-60, 

Farmer Jones must determine how many acres of corn and wheat to plant this year. An acre of wheat yields25 bushels of wheat and requires 10 hours of labor per week. An acre of corn yields 10 bushels of corn andrequires 4 hours of labor per week. All wheat can be sold at $4 a bushel and all corn can be sold at $3 abushel. Seven acres of land and 40 hours per week of labor are available. Government regulations requirethat at least 30 bushels of corn be produced during the current year. Let x1 = number of acres of corn plantedand x2 = number of acres of wheat planted.

Is (x1 = 2, x2 = 3) in the feasible region?

For 56-60, 

Farmer Jones must determine how many acres of corn and wheat to plant this year. An acre of wheat yields25 bushels of wheat and requires 10 hours of labor per week. An acre of corn yields 10 bushels of corn andrequires 4 hours of labor per week. All wheat can be sold at $4 a bushel and all corn can be sold at $3 abushel. Seven acres of land and 40 hours per week of labor are available. Government regulations requirethat at least 30 bushels of corn be produced during the current year. Let x1 = number of acres of corn plantedand x2 = number of acres of wheat planted.

Is (x1 = 3, x2 = 2) in the feasible region?

Find the expected number of customers in service.

What is the percentage of time the facility is idle?

Ten samples of a process measuring the number of returns per 100 receipts were taken for a local retail store. The number of returns were 10, 9, 11, 7, 3, 12, 8, 4, 6, 11. Find the standard deviation of the sampling distribution.

A manager wants to build control limits for a process. The target value for the mean of the process is10 units, and the standard deviation of the process is 6. If samples of size 9 are to be taken, the UCL and LCL will be

The specifications for a manifold gasket that installs between two engine parts calls for a thickness of2.500 mm ± .020 mm. The standard deviation of the process is estimated to be 0.004 mm. The process iscurrently operating at a mean thickness of 2.50 mm. What is the Cp for this process?

For 72-73,

A machine is used to produce precision tools. If the machine is in good condition today, then 90% of thetime it will be in good condition tomorrow. If the machine is in bad condition today, then 80% of the timeit will be in bad condition. If the machine is in good condition, it produces 100 tools per day. If the machineis in bad condition, it produces 60 tools per day.

What is the steady-state probability for the good condition?

For 72-73,

A machine is used to produce precision tools. If the machine is in good condition today, then 90% of thetime it will be in good condition tomorrow. If the machine is in bad condition today, then 80% of the timeit will be in bad condition. If the machine is in good condition, it produces 100 tools per day. If the machineis in bad condition, it produces 60 tools per day.

What is the steady-state probability for the bad condition

Given the following items:

I. The capacities of different production facilities

II. The profit per unit of each product

III. The number of units each product to be produced

IV. The amount of capacity (e.g. time or man-hours) that is required at each production facility toproduce a unit of product

V. The cost to produce a unit of each product

Which of the above items are typical decision variables for allocating resources in a manner thatmaximizes profits?

Given the following items:

I. The capacities of different production facilities

II. The profit per unit of each product

III. The number of units each product to be produced

IV. The amount of capacity (e.g. time or man-hours) that is required at each production facility toproduce a unit of product

V. The cost to produce a unit of each product

Which of the items above are typical parameters whose values must be specified in the objectivefunction for allocating resources in a manner that maximizes profits?

Identify all correct answers. If the service rate is constant, it means

I. The number of customers waiting for a service is constant

II. The amount of time a customer must wait before being served is constant

III. The amount of time it takes to serve each customer is constant

IV. The amount of time a customer must spend in the service facility is constant

When computing equilibrium probabilities for a Markov process, we assume that:

For 78-80,

The Philippine Aviation Company tool room is staffed by one clerk who can serve 12 productionemployees, on the average, each hour. The production employees arrive at the tool room every six minutes,on the average.

What is the tool room utilization

For 78-80,

The Philippine Aviation Company tool room is staffed by one clerk who can serve 12 productionemployees, on the average, each hour. The production employees arrive at the tool room every six minutes,on the average.

If the average waiting time in queue is 0.417 hrr., what is the average waiting time in the system?

For 78-80,

The Philippine Aviation Company tool room is staffed by one clerk who can serve 12 productionemployees, on the average, each hour. The production employees arrive at the tool room every six minutes,on the average.

What is the probability that the tool room clerk will be idle?

Rex Pascual is the proud owner of a 2018 sports car. On any given day, Rex never knows whether hiscar will start. Ninety percent of the time it will start if it started the previous morning and 70% of the timeit will start if it did not start the previous morning. What is the probability that it will start tomorrow if itstarted today?

A type 3 radio is under consideration for productions of a type 3 radio are as follows: price, $30; 2hours from laborer 1; 2 hours from laborer 2; cost of raw materials, $3. Should Radioco manufacture anytype 3 radios?

When a lot has been accepted by acceptance sampling, we know that:

An acceptance sampling plan has to be designed to meet the organization's target for product qualityand risk levels. Which of the following is true?

A sample of 200 lightbulbs was tested and it was found that 11 were defective. Calculate a 95 percent confidence interval around this sample proportion. Round off your final answer to three decimal places.

For 97-98,

The Nitro Fertilizer Company is developing a new fertilizer. If Nitro markets the product and it issuccessful, the company will earn a $50,000 profit; if it is unsuccessful, the company will lose $35,000. Inthe past, similar products have been successful 60% of the time. At a cost of $5,000, the effectiveness ofthe new fertilizer can be tested. If the test result is favorable, there is an 80% chance that the fertilizer willbe successful. If the test result is unfavorable, there is only a 30% chance that the fertilizer will besuccessful. There is a 60% chance of a favorable test result and a 40% chance of an unfavorable test result.

What is the EVPI?

For 97-98,

The Nitro Fertilizer Company is developing a new fertilizer. If Nitro markets the product and it issuccessful, the company will earn a $50,000 profit; if it is unsuccessful, the company will lose $35,000. Inthe past, similar products have been successful 60% of the time. At a cost of $5,000, the effectiveness ofthe new fertilizer can be tested. If the test result is favorable, there is an 80% chance that the fertilizer willbe successful. If the test result is unfavorable, there is only a 30% chance that the fertilizer will besuccessful. There is a 60% chance of a favorable test result and a 40% chance of an unfavorable test result.

What is the optimal value for the best strategy?