A major source of revenue in Texas is a state sales tax on certain types of goods
Question:
A major source of revenue in Texas is a state sales tax on certain types of goods and services. Data are compiled and the state comptroller uses them to project future revenues for the state budget. One particular category of goods is classified as Retail Trade. Four years of quarterly data (in $millions) for one particular area of southeast Texas follow:
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(a) Compute seasonal indices for each quarter based on a CMA.
(b) Deseasonalize the data and develop a trend line on the deseasonalized data.
(c) Use the trend line to forecast the sales for each quarter of year 5.
(d) Use the seasonal indices to adjust the forecasts found in part (c) to obtain the finalforecasts.
Step by Step Answer:
Forecasting Multiplicative decomposition 4 seasons Enter past demands in the data area Do not change the time period numbers Data Error analysis Perio...View the full answer
Quantitative Analysis for Management
ISBN: 978-0132149112
11th Edition
Authors: Barry render, Ralph m. stair, Michael e. Hanna
