## Time Series

Some additional data to work with on top of the stuff in the

Internals Section which has data sets and worked answers.

Retail Sales Data
zipped Excel file
A set of related time series which you can use to practice your analysis. I will mark any work submitted.

## Equations

Some material to work with, though it doesn't cover all the answering questions in context.

Practice 1
Practice 2
Practice 3
pdf files
Practice 4
Practice 5
Practice 6
Worksheets with a couple of exercises at each level.

This is quite a good explanation of the process for solving 3 x 3 equations by hand from

http://www.slideshare.net.

Extension work
pdf file