Golf driver sales data

A marketing analyst wants to predict sales of a golf driver. The analyst collects previous sales data to predict the sales of the product for the next 3 months.

You can use this data to demonstrate Winters' Method, Decomposition, ARIMA, and other analyses that use time series data that have seasonal patterns and trends for forecasting.

Worksheet column Description
Sales The number of golf drivers that were sold over the last 48 months
Number of Sites The number of stores that sold the golf drivers