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  3. iv. the number of plumbing repair jobs performed b

IV. The number of plumbing repair jobs performed by Augur’s Plumbing Service in each of the...

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Operations Management

IV. The number of plumbing repair jobs performed by Augur’sPlumbing Service in each of the last nine months is listedbelow.

Month            Jobs    

August           353

September       367

October          372

November       387

December        396

January           409

February         399

March             412

April               428

  1. Assuming a linear trend function, forecast the number of repairjobs Augur’s will perform in May using the trend (least squares)method.
  2. What is your forecast for May using a three-period weightedmoving average in which the weights are .6, .3 and .1?
  3. Which method, a or b, gives the better forecast? Explainwhy.

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