Sales trends data

A sales analyst wants to compare the sales data for the previous two years and examine the effect of advertising agencies on sales.

You can use this data to demonstrate Cross Correlation, Time Series Plot, and other analyses that explore the relationship between time series.

Worksheet column Description
Year The year identifier: 1 or 2
Month The month identifier
Sales Sales revenue in units of $1000
Advertis Advertising costs in units of $1000
AdAgency The advertisement agency: Alpha or Omega
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