Challenge #24: ARIMA Time Series

[Benbryans]

Going to be using this a lot more now I know how it works!

[Ozzy_Campos]

Solution Attached.  

[T_Willins]

Slightly different forecast than original output, but it is built correctly.  After building I reran and compared to provided solution workflow & it ties. 

Spoiler

[CRowlatt]

Similar issues to everyone else, but a fairly simple challenge!

[nnilz]

Solution attached

[TonyA]

Here's my solution.

[rachelgatto]

Solved. 

[arjanloogman]

My solution...

Weird thing is, when I run the ARIMA tool on Monthly, it returns the same forecast values as in the solution (NOT same the forecast highs and lows, however). When I run it on Weekly (as should be done according to the assignment and the solution), the forecast values are off by at least 6...

Am I doing something wrong here? I double checked the settings of both ARIMA and TS Forecast, as well as the corrected unit values...

Kind regards, Arjan Loogman

[Ladarthure]

My solution to the challenge

[bkclaw113]

As many others stated a little thrown off by the numbers from my results not matching the target data, but given that the official solution workbook gets the same results as me I will need to assume changes have been made to the ARIMA model since this exercise was first created.