nformation: a) Explain what the time series is likely to look like (i.e., cyclical, seasonal, with a trend). b) Explain what is the predicted GDP value for Q4, 2021?

ENGR.ECONOMIC ANALYSIS
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ISBN:9780190931919
Author:NEWNAN
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Chapter1: Making Economics Decisions
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Question 2
The below output shows the results of an ARIMA model which was fitted to a time-series
data of Japan's GDP, and an excerpt of the data. Based on the below model and
information:
a) Explain what the time series is likely to look like (i.e., cyclical, seasonal, with a trend).
b) Explain what is the predicted GDP value for Q4, 2021?
Quarter, Year GDP (in trillions of dollars)
5.5
6.5
7.0
Q1, 2021
Q2, 2021
Q3, 2021
## Series: GDP
## Model: ARIMA(1,1,0)
## Coefficients:
##
#
ar1 constant
0.5 3
Transcribed Image Text:Question 2 The below output shows the results of an ARIMA model which was fitted to a time-series data of Japan's GDP, and an excerpt of the data. Based on the below model and information: a) Explain what the time series is likely to look like (i.e., cyclical, seasonal, with a trend). b) Explain what is the predicted GDP value for Q4, 2021? Quarter, Year GDP (in trillions of dollars) 5.5 6.5 7.0 Q1, 2021 Q2, 2021 Q3, 2021 ## Series: GDP ## Model: ARIMA(1,1,0) ## Coefficients: ## # ar1 constant 0.5 3
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