Moving Average Formula:
From: | To: |
The Moving Average (MA) is a simple forecasting method that calculates the average of past observations to predict future values. It's commonly used in time series analysis to smooth out short-term fluctuations and highlight longer-term trends.
The calculator uses the Simple Moving Average formula:
Where:
Explanation: The equation calculates the arithmetic mean of the given data points to produce a forecast for the next period.
Details: Moving averages are widely used in business forecasting, stock market analysis, inventory management, and quality control to identify trends and make predictions.
Tips: Enter your historical data points separated by commas (e.g., 12,15,14,16). The calculator will compute the average which serves as the forecast for the next period.
Q1: What's the difference between simple and weighted moving average?
A: Simple MA gives equal weight to all data points, while weighted MA assigns different weights, typically giving more importance to recent data.
Q2: How many data points should I use?
A: It depends on your data pattern. More points create smoother trends but may lag behind real changes. Fewer points are more responsive but more volatile.
Q3: When is moving average most effective?
A: When data shows a trend with relatively stable variation. It's less effective for data with strong seasonality or sudden shifts.
Q4: What are common applications of moving average?
A: Sales forecasting, stock price analysis, inventory management, quality control charts, and economic indicators.
Q5: How does this differ from exponential smoothing?
A: Exponential smoothing gives exponentially decreasing weights to older observations, while simple MA gives equal weight to all observations in the period.