9. Arrive at the total number of days that each pallet took between manufacturing and reaching the retail store. Are there any trends in terms of the type of pallets and the time taken? Hint: On a sheet named "Question 9", create two separate pivot tables with EPC Read and Tag Read Date and Time. For both pivot tables, filter by "Type of Interaction". For the first pivot table, filter by "Pallet assembly completed" and select MIN of Tag Read Date and Time. For the second pivot table, filter by "Pallet delivered to and stored in the retail store" and select MIN of Tag Read Date and Time. Now subtract the two times in the two pivot tables to obtain the total days product is spending from manufacturing to reaching the retail store. Once you have this basic analysis. you may want to add "Product name" to the pivot tables to figure out the trends