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GATE 2022 ME: Industrial Engineering Quiz - 5

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Question 1

The Demand forecast and the actual demand of an organization is provided. Determine the values of mean absolute deviation.

Question 2

In a forecasting model, at the end of period 13, the forecasted value for period 14 is 75. Actual value in the periods 14 to 16 are constant at 100. If the assumed simple exponential smoothing parameter is 0.5, then BIAS at the end of period 16 is

Question 3

According to a forecasting model, the forecast for the month of March was determined to be 12800. If the demand and forecast for the month of February are in the ratio 7:5. What will be the value of the smoothing constant if a simple exponential smoothing technique is utilized for this analysis? Use

Question 4

The demand for five time periods was 9, 11, 15, 16 and 20. In a time series forecasting model, a linear regression can be represented by an equation F = 5.7 + 2.5 t where F is the forecast for period t. The mean absolute deviations is

Question 5

A moving average system is used for forecasting weekly demand. F1(t) and F2(t) are sequences of forecasts with parameters m1 and m2, respectively, where m1 and m2 (m1 > m2) denote the numbers of weeks over which the moving averages are taken. The actual demand shows a step increase from d1 to d2 at a certain time. Subsequently,

Question 6

In smoothing method of forecasting, the weight to demand data assigned
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