Operations Mgmt a.) A Coppin student is working 5 hours per day to produce 100 w

Question

Operations Mgmt

a.) A Coppin student is working 5 hours per day to produce 100 welcome packages for incoming Freshmen.

What is the Coppin student’s productivity?

By redesigning the packages, the Coppin student thinks she can increase her productivity to 133 welcome packages per day. What will be her new productivity?

What will be the percentage increase in productivity if she makes the change?

B.)

  a) Define mission

   b) Define strategy.

   c) Describe how an organization’s mission and its strategy have different purposes.

C.) The activities described in the following table are for the Merritt Construction Company.

ACTIVITY     PREDECESSOR(S)   TIME (days)

          A           ---                               9                                                                                             

B          A                                 7

C A                                 3

D         B                                  6

E B                                  9

F C                                  4

G E, F                             6

H         D                                 5         

I          G, I                              3

Draw the PERT diagram (aka AON diagram) for the Merritt Construction team.

Find the critical path.

What is the project completion time?

D.) The following gives the number of pints of milk used by the CSU cafeteria in the past six weeks:

WEEK OF                   PINTS USED

Jan 22                                    360

Jan 29                                    389

Feb 5                          410

Feb 12                        381

Feb 19                        368

Feb 26 374

Forecast the demand for the week of March 5 using a 3-week moving average.

Forecast the demand for the week of March 5 using a 3-week weighted moving average with weights of .1, .3, and .6, using .6 for the most recent week.

Forecast the demand for the week of March 5 using exponential smoothing with a forecast for Jan 22 of 360 and alpha = .2.

Explanation / Answer

a) Labor productivity is the value of goods and services produced in a period of time, divided by the hours of labor used to produce them.]

Productivity is 20 packets/hours. to increase it to 133 her productivity must be 133/5 packets/hour

27 packets/hr

percentage change= 27-20/20 *100 = 35% increase is required in the productivity.

B) A Mission defines the company's business, its objectives and its approach to reach those objectives.

   Strategy- A plan of action intended to accomplish a specific goal.

A company strategy should include short- and long-term goals and should explain how those goals will be achieved. It is focused on present actions and outcomes needed to move closer to achieving the mission. Company strategies evolve and are updated over time to adjust for current factors such as local economic conditions and company needs.

forecast demand for week of march 5 using 3-week moving average

March 5 forecast = feb26+ feb 19+feb 12

                                                                                3

march 5 forecast = 374 + 368 + 381

                                         3

hence answer of march 5 forecast = 374.33

WEIGHTED AVERAGE:

march 5 = feb 26 (.6) + feb 19 (.3) + feb 12 (.1)

march 5 forecast = 374 (.6) + 368 (.3 + 381 (.1)

= 224.40 + 110.40 +38.10

answer of weighted average = 372.90

march 5 = feb 26 + alpha * (374 - feb 26) = 374.33 + .20 ( 374 - 374.33) = 374.33 + .20 ( -.33)

march 5 forecast                   =    374.33 +(-.066)

march 5 forecast                   =    374.26

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