1
GATE ME 2005
MCQ (Single Correct Answer)
+2
-0.6
The sales of a product during the last four years were $$860, 880, 870$$ and $$890$$ units. The forecast for the fourth year was $$876$$ units. If the forecast for the fifth year, using simple exponential smoothing, is equal to the forecast using a three period moving average, the value of the exponential smoothing constant $$\alpha $$ is
A
$${1 \over 7}$$
B
$${1 \over 5}$$
C
$${2 \over 7}$$
D
$${2 \over 5}$$
2
GATE ME 2003
MCQ (Single Correct Answer)
+2
-0.6
The sale of cycles in a shop in four consecutive months are given as $$70, 68, 82 95.$$ Exponentially smoothing average method with a smoothing factor of $$0.4$$ is used in forecasting. The expected number of sales in the next month is
A
$$59$$
B
$$72$$
C
$$86$$
D
$$136$$
3
GATE ME 2000
MCQ (Single Correct Answer)
+2
-0.6
In a time series forecasting model, the demand for five time periods was $$10, 13,$$ $$15,$$ $$18$$ and $$22.$$ A linear regression fit resulted in an equation $$F = 6.9 + 2.9$$ $$t$$ where $$F$$ is the forecast for period $$t$$. The sum of absolute deviations for the five data is
A
$$2.2$$
B
$$0.2$$
C
$$-1.2$$
D
$$24.3$$
4
GATE ME 1997
MCQ (Single Correct Answer)
+2
-0.6
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 the $$MSE$$ at the end of period $$16$$ is
A
$$820.31$$
B
$$273.44$$
C
$$43.75$$
D
$$14.58$$
GATE ME Subjects
Turbo Machinery
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
CBSE
Class 12