Using a weight of 1/2 for the most recent observation, 1/3 for the second most recent, and 1/6 for third most recent, compute a three-week weighted moving average for the time series. Use rounded for two decimal places values for intermediate calculations. Use minus sign for negative values. Refer again to the gasoline sales time series data in the following table.Week123456789101112Week12356789101112Sales1824192417a. Using a weight of 1/2 for the most recent observation, 1/3 for the second most recent, and 1/6 for third most recent, compute a three-week weighted moving average for the time series. Use rounded for two decimal places values for intermediatecalculations. Use minus sign for negative values.162219242116Sales (1000s of gallons)2218NA NANGN2419241716221924211622Weighted MovingAverage ForecastForecastErrorTotal(Error)²

The question is about forecasting.Given :To find :a ) 3 week weighted moving average, forecast error…

Refer again to the gasoline sales time series data in the following table. Sales (1000s of gallons) 18 24 19 24 17 16 22 19 24 21 16 22 Week 1 2 3 4 5 6 7 8 9 10 11 12 a. Using a weight of 1/2 for the most recent observation, 1/3 for the second most recent, and 1/6 for third most recent, compute a three-week weighted moving average for the time series. Use rounded for two decimal places values for intermed calculations. Use minus sign for negative values. Week 1 2 3 4 5 6 7 8 9 10 11 12 Sales 18 24 19 24 17 16 22 19 24 21 16 22 Weighted Moving Average Forecast Forecast Error Total 1 I I 1 (Error)2

Refer again to the gasoline sales time series data in the following table. Sales (1000s of gallons) 18 24 19 24 17 16 22 19 24 21 16 22 Week 1 2 3 4 5 6 7 8 9 10 11 12 a. Using a weight of 1/2 for the most recent observation, 1/3 for the second most recent, and 1/6 for third most recent, compute a three-week weighted moving average for the time series. Use rounded for two decimal places values for intermed calculations. Use minus sign for negative values. Week 1 2 3 4 5 6 7 8 9 10 11 12 Sales 18 24 19 24 17 16 22 19 24 21 16 22 Weighted Moving Average Forecast Forecast Error Total 1 I I 1 (Error)2

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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