Quarter.201820192020166738521061191303140165205Using the same data in table48291100a) Use the technique of least squares method, find the trend lineb) Find the trend valuesc) Forecast the sales for 2021 second quarter.d) Plot the time series data and trend line.

From the question data, I have prepared the data table, the column labels are quarter, year, period,…

Answered: a) Use the technique of least squares…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter13: Regression And Forecasting Models

Section13.6: Moving Averages Models

Problem 22P: The file P13_22.xlsx contains total monthly U.S. retail sales data. While holding out the final six...

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a) Use the technique of least squares method, find the trend line b) Find the trend values c) Forecast the sales for 2021 second quarter.