In the context of distinguishing between forecasting and prediction, which one of the following statements is false ?
Forecasting reflects management’s judgement after taking all available information into account; while prediction involves the projection of the past into the future.
Statement 2 is false — the two halves have been swapped.
The correct distinction :
| Forecasting | Prediction | |
|---|---|---|
| Basis | Projection of the past into the future using data and a theoretical model | Management’s judgement after taking all available information into account — including information the model cannot hold |
| Nature | Objective, systematic, replicable | Subjective, intuitive, personal |
| Error analysis | Possible — MAD, MSE, MAPE, tracking signal | Not possible, as there is no model against which to measure deviation |
| Repeatability | Two analysts with the same data reach the same figure | Two managers may reach different figures |
Statement 2 attributes the projection of the past to prediction and management’s judgement to forecasting. Both attributions are the wrong way round, which is what makes it the false statement.
Why the other three are true.
| Statement | Why it stands |
|---|---|
| 1 | Forecasting rests on a model — time series, regression, exponential smoothing. Prediction may indeed rest on intuition |
| 3 | Forecast error is measurable precisely because a forecast is generated by a stated method: \(e_{t}=A_{t}-F_{t}\), from which MAD and MSE follow. A hunch yields no such residual |
| 4 | Prediction is by definition subjective; that is the entire point of the contrast |
A caution against overstating the contrast. Prediction is not merely guesswork, and it is not inferior. A forecast can only extrapolate relationships present in past data, so it is blind to a structural break — a new competitor, a change of law, a technological shift. That is exactly where a manager’s judgement is indispensable, and it is why the best practice is to combine the two: generate a statistical forecast, then adjust it judgementally for information the data cannot yet contain.
The forecasting methods themselves divide the same way: quantitative methods — time-series and causal — require historical data, while qualitative methods such as the Delphi technique, expert opinion, sales-force composite and market research are used precisely when data are absent, as with a new product.
Hence, the answer is statement 2.
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Important Questions from Decision Making
- Who pioneered the concept of "Fight or Flight situation" as stress survival trait ?
- An economic decision in the family deals with :
(i) Multiple goals
(ii) Single goal
(iii) Multiple values
(iv) Scarce resources
code : - Match List – I with List – II and indicate your answer by using the codes given below :
List - I
(Concept)List - II
(Description)p. Heuristics 1. Judgements made on the basis of specific kind of information that can be brought to mind. q. Representative Heuristics 2. Tendency to use a number of value as a starting point to whom one adopts. r. Availability Heuristics 3. Simple rules for drawing inferences in a rapid and effortless manner. s. Anchoring and Adjustment Heuristics 4. Judgements made on the basis of resemblance of current stimuli to other stimuli.
Codes: - Arrange in correct sequence the steps involved in decision-making :
I. Selecting the best alternative
II. Identifying the problem
III. Searching alternative solutions
IV. Thinking through alternatives
V. Feedback - Arrange in proper sequence the steps involved in problem solving stage :
(a) Obtaining relevant information
(b) Selecting the best course
(c) Formulating possible course of action
(d) Identifying the problem
