A guy on reddit has been tracking his daily body weight for the last 3.5 years.

Managerial Economics: Applications, Strategies and Tactics (MindTap Course List)
14th Edition
ISBN:9781305506381
Author:James R. McGuigan, R. Charles Moyer, Frederick H.deB. Harris
Publisher:James R. McGuigan, R. Charles Moyer, Frederick H.deB. Harris
Chapter5: Business And Economic Forecasting
Section: Chapter Questions
Problem 3E: Metropolitan Hospital has estimated its average monthly bed needs as N=1,000+9X where...
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1..Time series econometrics question.

Please show all steps, and clearly. Thanks.

Problem 2
A guy on reddit has been tracking his daily body weight for the last 3.5 years.
$2.5
12.5
775
1-an-2016
1-lan-2017
1-hul-2017
1-lan-301
1-lan-2010
a)
Does your model include a (linear/exponential) time trend? Why, why not?
b)
c)
d)
e)
Does your model include a unit root i.e. is the process stationary? Why, why not?
Does your model include a seasonal component? Why, why not?
Did you include AR or MA components in your model? Explain.
Write down the time series model that you think best fits this process.
Transcribed Image Text:Problem 2 A guy on reddit has been tracking his daily body weight for the last 3.5 years. $2.5 12.5 775 1-an-2016 1-lan-2017 1-hul-2017 1-lan-301 1-lan-2010 a) Does your model include a (linear/exponential) time trend? Why, why not? b) c) d) e) Does your model include a unit root i.e. is the process stationary? Why, why not? Does your model include a seasonal component? Why, why not? Did you include AR or MA components in your model? Explain. Write down the time series model that you think best fits this process.
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