a. ) In the first sheet, make your preliminary analysis, scatter the data, and check whether there
Question:
a. ) In the first sheet, make your preliminary analysis, scatter the data, and check whether there is trend&seasonality. In a textbox, write your answer for trend and seasonality.
b. ) Depending on your decision on trend and seasonality, forecast 2021Q1 GDP with an appropriate method. Show and explain your work in the second sheet of your Excel file.
c.) Depending on your decision on trend and seasonality, forecast 2021Q1 GDP with an alternative appropriate method. Show and explain your work in the second sheet of your Excel file.
d.) In a new sheet, compare your two alternative forecast methods, based on MAD. Which one is better? Explain your choice, and state your final decision on the forecast for next period's GDP (the forecast with better method).
Data Analysis and Decision Making
ISBN: 978-0538476126
4th edition
Authors: Christian Albright, Wayne Winston, Christopher Zappe