1
MCQ (Single Correct Answer)

### GATE ME 2003

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
$136$
2
MCQ (Single Correct Answer)

### GATE ME 2000

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
$24.3$
3
MCQ (Single Correct Answer)

### GATE ME 1997

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
$14.58$
4
MCQ (Single Correct Answer)

### GATE ME 1989

Which of the following is a technique for forecasting?
A
Exponential smoothing
B
$PERT/CPM$
C
Gantt chart technique
D
Control charts

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