Math Problem Statement
To select a value for α for exponential smoothing Group of answer choices
use a small α when the series varies substantially.
use a large α when the series has little random variability.
All of the alternatives are true.
use a value between 0 and 1
Solution
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Math Problem Analysis
Mathematical Concepts
Statistics
Time Series Analysis
Exponential Smoothing
Formulas
Exponential Smoothing Formula: S_t = α * X_t + (1 - α) * S_(t-1)
Theorems
None explicitly, but based on the principle of weighted averages
Suitable Grade Level
Undergraduate level
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