Production and Industrial Engineering
GATE PI concept:exponential-smoothing PYQs
Build your understanding with focused practice from past exam papers.
How to practice concept:exponential-smoothing
Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.
Questions 1–6 of 6. Imported answers require independent review unless marked reviewed.
Question 25
Open questionPIMCQ1 markNeeds review
Which one of the following methods requires the least amount of data for forecasting?
Your answerChoose one option.
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The qualitative method of forecasting amongst the given options is
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 65
Open questionPINAT2 marksNeeds review
A company forecasts the weekly demand of oxygen cylinders using exponential smoothing method with smoothing constant
. The actual demands in Week 1, Week 2, Week 3 and Week 4 were 375, 412, 592 and 439 units, respectively. The forecasted demand for Week 3 was 500 units. The forecast (in unit) for the Week 5 is____________. [in integer]Log in to check the answer
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Which of the following is a causal forecasting method?
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Open questionPINAT2 marksNeeds review
The sales data of a product for 5 years are:
Year | 2014 | 2015 | 2016 | 2017 | 2018 |
|---|---|---|---|---|---|
Sales (units) | 280 | 268 | 259 | 270 | 287 |
Assume the forecast for the year 2014 as 260 units. Using an exponential smoothing method with smoothing constant α = 0.5, the sales forecast (units) for the year 2019, is ______
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Open questionPINAT2 marksNeeds review
In a calendar year, the demand forecast of motorbikes for the month of June is 200. The actual demand of motorbikes for the month of June and July are 300 and 350, respectively. If single exponential smoothing method with smoothing constant 0.7 is used, then the demand forecast for the month of August is
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