Operations administration decisions go into eincredibly product or company. The operations manager effects all components of the business from the raw materials to the shipment of the good or company. To continue to administer the highest possible top quality products and also services needs continuous improvement. CONCEPT REVIEW: Organizations look to the operations manager to determine what kind of procedure is ideal suited to meet their customers' requirements. To make this determicountry, the operations manager demands to have understanding of the facts and how to translate indevelopment. By measurement, the operations manager have the right to decide if their process is the most efficient for their product or business.

Problem 2-1

A catering company all set and served 355 meals at an anniversary celebration last week making use of nine workers. The week prior to, 5 employees all set and served 255 meals at a wedding reception.

You are watching: Match the forecasting method to the appropriate classification.

    

a1.

Calculate the labor efficiency for each occasion. (Round your answers to 1 decimal place.)

    

  Anniversary

 

meals/worker

  Wedding

 

meals/worker

     

a2.

For which occasion was the labor efficiency higher?

 

   

 

Wedding

Anniversary

 Problem 2-3

Compute the multielement performance measure for each of the weeks shown for manufacturing of chocolate bars. Assume 40-hour weeks and also an hourly wage of $12. Overhead is 1.5 times weekly labor price. Material price is $8 per pound. (Round your answers to 2 decimal locations.)

    

  Week

Output (units)

Workers

Material (lbs)

1

28,000

5

410

2

32,000

8

520

3

33,000

8

470

4

34,000

8

570

     

Week

MFP (Output / Total Cost)

  1

       

  2

      

  3

      

  4

      

Match the forespreading method to the appropriate classification.

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Liclose to Regression

Liclose to Regression

Seasonal Relative

Seasonal Relative

Exponential Smoothing

Exponential Smoothing

Delphi Method

Delphi Method

Consumer Surveys

Consumer Surveys

Executive Opinions

Executive Opinions

Associative Models

 Time-series Forecasts

 Judgemental Forecasts

 Match the forecasting technique to the appropriate classification.

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Concept Check

Forecasting Method Selection

Read the oversee listed below and also complete the tasks that follow.

A foreactors is a statement about the future value of a variable, such as demand also. That is, forecasts are predictions about the future. The better those predictions, the even more indeveloped decisions have the right to be.CONCEPT REVIEW: Many different kinds of forespreading methods are obtainable, and also no single technique works ideal in eexceptionally instance. Different forespreading methods require various levels of background sophistication in the personnel affiliated in the methods' development.

· 1.

Period 1 had actual sales of 1,020. Period 2 had actual sales of 1,010, and also Period 3 had actually actual sales of 1,060. What is the three-duration relocating average?

select

· select

· 1,020

· 1,010

· 1,030

· 3,090

· 1,060

· 2.

Our last four durations had sales, from earliest to most current, of 100, 200, 130, and 300. What is the three-period MA?

select

· select

· 143

· 300

· 183

· 210

· 243

· 3.

Last month our foreactors was 800, yet we sold 1,000 systems. What is the foreactors error?

select

· select

· -200

· 800

· 200

· 1,800

· 1,000

· 4.

Last month, the foreactors error was -300. With an alpha of .10, by just how much will this month's forecast change?

select

· select

· -30

· 300

· 30

· -300

· 5.

The last 2 months had actually foreactors errors of 200 and -50; what is the MAD?

select

· select

· 125

· 150

· -50

· -200

· 75

· 6.

We uncover our data has a trfinish, via intercept a=90 and also slope b=2. At time 6, what is the forecast?

"Profitable Sustainability" featuring Subaru of Indiana

Read the overview listed below and finish the activities that follow.

Subaru of Indiana is the initially domestic auto plant to achieve zero landfill. They concentrated on waste reduction, reusage and also recycling. They took the time to look for eincredibly possibility to reduced waste. CONCEPT REVIEW: The method supplied to accomplish the zero landfill goal was proactive and also forward looking. They tapped right into the considerable project understanding of the plant associates. By tracking the waste they were generating and also eliminating it at the source, they have lessened costs and accomplished the zero landfill goal.

Problem 4-8

Fill the complying with table for cookies sold in a bakery. Indicate by a checknote which customer needs and which technological needs are connected. Use "√" to present the relation and "x" to suggest that tright here is no relation.

      

 

Technical Requirements

  Customer Requirements

Ingredients   

Handling   

Preparation   

  Taste

  Appearance

  Texture/Consistency

 

Problem 5-4

A little firm intends to rise the capacity of a bottleneck procedure by including a brand-new machine. Two choices, A and also B, have actually been established, and also the connected costs and revenues have actually been estimated. Annual resolved costs would be $38,000 for A and also $31,000 for B; variable costs per unit would be $7 for A and $11 for B; and also revenue per unit would certainly be $19.

     

a.

Determine each alternative’s break-also point in devices. (Round your answer to the nearemainder whole amount.)

     

  QBEP,A

units  

  QBEP,B

units  

    

b.

At what volume of output would the 2 alternatives yield the same profit? (Round your answer to the nearest entirety amount.)

    

  Profit

units  

    

c.

If intended yearly demand is 10,000 devices, which different would yield the higher profit?

     

  Higher profit

 

 

Problem 5-6

A real estate agent is considering changing her cell phone setup. Tright here are 3 plans to select from, all of which involve a monthly organization charge of $20. Plan A has actually a expense of $.40 a minute for daytime calls and $.20 a minute for evening calls. Plan B has a charge of $.50 a minute for daytime calls and $.14 a minute for evening calls. Plan C has a flat rate of $75 with 200 minutes of calls enabled per month and also a charge of $.38 per minute past that, day or evening.

      

a.

Determine the total charge under each arrangement for this case: 130 minutes of day calls and 50 minutes of evening calls in a month. (Do not round intermediate calculations.  Round your answer to 2 decimal locations.  Omit the "$" authorize in your response.)

       

  Cost for Plan A

$  

  Cost for Plan B

$  

  Cost for Plan C

$  

       

c.

If the agent will usage the company for daytime calls, over what variety of speak to minutes will each plan be optimal? (Round each answer to the nearemainder whole number.Include the indistinction allude itself in each answer.)

     

 

Plan A is optimal from zero to minutes. Plan C is optimal from minutes onward.

 

    

d.

Suppose that the agent expects both daytime and also evening calls. At what allude (i.e., portion of complete call minutes offered for daytime calls) would certainly she be indifferent between plans A and also B? (Do not round intermediate calculations.  Get in your answer as a portion rounded to 2 decimal areas.  Omit the "%" authorize in your response.)

    

  Point

percent daytime minutes  

rev: 10_10_2014_QC_56210

Problem 6-4

A producer of inkjet printers is planning to add a new line of printers, and also you have been asked to balance the procedure, provided the complying with task times and precedence relationships. Assume that cycle time is to be the minimum feasible.

 

Task

Length(minutes)

ImmediatePredecessor

a

0.2

-

b

0.4

a

c

0.3

-

d

1.3

b, c

e

0.1

-

f

0.8

e

g

0.3

d, f

h

1.2

g

     

a.

Do each of the following:

 

(2)

Assign work to stations in order of biggest number of following jobs. Use biggest positional weight as a tiebreaker preeminence.

 

Work Station

Task Assigned

I

 

II

 

III

 

IV

 

 

Task

Following   Tasks     

a

 

b

 

c

 

d

 

e

 

f

 

g

 

h

 

 

(3)

Determine the percentage of idle time. (Round your answer to 2 decimal areas. Omit the "%" sign in your response.)

 

  Percentage of idle time

%  

 

(4)

Compute the rate of output in printers per day that can be supposed for this line assuming a 420-minute working day. (Round your answer to the nearest whole number.)

 

  Rate of output

units per day  

 

b.

Answer these questions:

 

(1)

What is the shortest cycle time that will certainly permit use of only 2 workstations? (Round your answer to 1 decimal place.)

 

  Shortest cycle time

minutes  

 

(2)

Determine the percentage of idle time that would certainly outcome if 2 stations were provided and each station was loaded through the worktime presented in Part b(1). (Leave no cells blank - be certain to enter "0" wherever forced. Omit the "%" sign in your response.)

 

  Percentage of idle time

%  

 

(3)

What is the day-to-day output under this arrangement a using the cycle time from Part b(1)? (Round your answer to 1 decimal place.)

 

  Daily output  

systems per day  

 

(4)

Determine the output price that would be connected via utilizing the maximum cycle time. (Round your answer to 2 decimal locations.)

 

  Rate of output

units per day  

Problem 6-5

As part of a significant plant renovation project, the commercial engineering department has been asked to balance a revised assembly procedure to achieve an output of 240 units per eight-hour day. Task times and precedence relationships are as follows:

    

Task

Duration(minutes)

ImmediatePredecessor

a

0.2

-

b

0.4

a

c

0.2

b

d

0.4

-

e

1.2

d

f

1.2

c

g

1.0

e, f

     

Do each of the following:

     

b.

Determine the minimum cycle time, the maximum cycle time, and also the calculated cycle time. (Round your answers to 1 decimal place.)

     

 

 

  The minimum cycle time  

minutes per unit 

  The maximum cycle time  

minutes per unit  

  Calculated cycle time  

minutes per unit  

     

c.

Determine the minimum variety of stations needed. (Round your answer to the next whole number.)

     

  Minimum variety of stations

  

     

d.

Asauthorize jobs to workstations on the basis of biggest variety of complying with tasks. Use longest handling time as a tiebreaker. If ties still exist, assume indifference in choice.

     

Work stations

      Following Tasks

I

 

II

 

III

 

IV

 

     

e.

Compute the percent of idle time for the assignment in component d. Use the actual bottleneck cycle time in your calculation. (Round your answer to 1 decimal area. Omit the "%" sign in your response.)

     

  Percentage of idle time

%  

rev: 02_04_2015_QC_CS-1791

Problem 6-6

Twelve jobs, through times and also precedence needs as presented in the following table, are to be assigned to workstations that have a solved machine cycle time of 1.5 minutes. Two heuristic rules will certainly be tried: (1) greatest positional weight, and (2) best variety of adhering to tasks.

In each instance, the tiebreaker will certainly be shortest job time.

 

Task

Length(minutes)

ImmediatePredecessor

a

0.1

-

b

0.2

a

c

0.9

b

d

0.6

c

e

0.1

-

f

0.2

d, e

g

0.4

f

h

0.1

g

i

0.2

h

j

0.7

i

k

0.3

j

l

0.2

k

 

b.

Assign tasks to stations under each of the two rules.

 

(1) greatest positional weight (shortest job time as tiebreaker)

 

Work Station

Tasks

I

 

II

 

III

 

 

(2) greatest variety of following jobs (shortest task time as tiebreaker)

 

Work Station

Tasks

I

 

II

 

III

 

 

c.

Compute the percent of idle time for each preeminence. (Round your answer to 2 decimal locations. Omit the "%" sign in your response.)

 

  Percentage of idle time

%  

rev: 02_04_2015_QC_CS-1678

Problem 7-2

A task was timed for 60 cycles and had actually an average of 1.6 minutes per piece. The performance rating was 95 percent, and workday allowances are 11 percent. Determine each of the following:

 

a.

Oboffered time. (Round your answer to 1 decimal place.)

 

  Observed time

minutes  

 

b.

Regular time. (Round your answer to 2 decimal areas.)

 

  Common time

minutes  

 

c.

Standard time. (Round your answer to 2 decimal places.)

 

  Standard time

minutes  

Problem 7-3

A time examine was conducted on a project that consists of four aspects. The oboffered times and also performance ratings for 6 cycles are presented in the adhering to table.

 

 

 

OBSERVATIONS (minutes per cycle)

Element

PerformanceRating

1

2

3

4

5

6

1

90%       

0.44  

0.50  

0.43  

0.45  

0.46  

0.46  

2

85          

1.50  

1.56  

1.47  

1.51  

1.49  

1.52  

3

110          

0.84  

0.89  

0.77  

0.83  

0.83  

0.80  

4

100          

1.10  

1.14  

1.08  

1.20  

1.16  

1.26  

 

a.

Determine the average cycle time for each aspect. (Round your answers to 3 decimal areas.)

 

 Element

        Mean cycle  

  1

  

  2

  

  3

  

  4

  

  

b.

Find the normal time for each aspect. (Round your answers to 3 decimal areas.)

 

 Element

           Normal time  

  1

  

  2

  

  3

  

  4

  

 

c.

Assuming an allowance aspect of 14 percent of task time, compute the conventional time for this job. (Round your answers to 3 decimal locations.)

 

 Element

           Standard time  

  1

  

  2

  

  3

  

  4

  

Location Factors

Read the overview listed below and also complete the tasks that follow.

Organizations have to make location decisions for many type of reasons. The options easily accessible in location planning and the components that go into location selection are covered here.CONCEPT REVIEW:Considering the benefits, disadvantages, dangers and concerns linked with various location choices is vital in an organization's location selection. Options encompass expanding an existing place, including a new location, relocating, or doing nopoint. Location decisions are influenced by many type of components at various geographical levels including nation, region, community, and website.

Concept Check

Location Factors

Read the oversee listed below and complete the tasks that follow.

Organizations must make place decisions for many kind of factors. The alternatives available in location planning and also the factors that go into location selection are spanned right here.CONCEPT REVIEW:Considering the benefits, disbenefits, threats and concerns associated with various location alternatives is vital in an organization's location selection. Options encompass broadening an existing location, adding a brand-new location, relocating, or doing nopoint. Location decisions are affected by many type of factors at various geographical levels consisting of country, region, neighborhood, and site.

· 1.

Which area alternative is the leastern expensive form of expansion?

select

· select

· Do nothing

· Close a place and also move to a new location

· Add a new location

· Cshed all locations

· Expand an existing location

· 2.

Fixed price is $30,000, and also variable cost is $4 per unit. What is the total cost for 20,000 units?

select

· select

· $30,000

· $20,000

· $80,000

· $110,000

· $50,000

· 3.

Fixed cost is $30,000, and variable cost is $2 per unit for 10,000 systems. If addressed prices increase by 10%, just how much will total price increase?

select

· select

· $1,000

· $30,000

· $2,000

· $5,000

· $3,000

· 4.

Total cost is $60,000 to make 20,000 systems. Fixed expense is $20,000. What is the variable cost per unit?

select

· select

· $2

· $1

· $3

· $6

· $4

· 5.

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We have actually customers in 3 places at grid places (2,6), (5,1), and also (2,2). Each area requirements the very same amount. Where is the center of gravity?

select

· select

· (3,3)

· (2,1)

· (2,2)

· (4,2)

· (5,5)

· 6.

We have actually two customers; one is at collaborates (6,2) and also has 200 devices of demand, and the other is at (3,4) via 800 systems of demand also. What is the center of gravity (round to the nearest entirety number coordinates)?