Hello ,
I have sales data from a laptop manufacturing company and the owner wants me to produce a breakdown of the revenues  he get from the sale of two different kinds of the laptops , Acer and Dell , over the two weeks period , 1/11/2009 – 14/11/2009 ,I have  180 observations .The price of the two are fixed and given $1,99.99 and $699.99.
I need  to first estimate the sale of both ( I'm given the units sold of each type for all 245 observations ) kind of laptops for the two weeks individually and then obtain the revenue he get  over the two week period .
The aim is to decide if there is a significant difference in avearge daily numbre of laptops sold in the two weeks period for both laptops  Acer and Dell.
I have the following inputs :
Input 	       TransactionID       $1-8
			DateofSale	          $9-18
			TimeofSale	  $19-26
			LaptopModel       $27-32
			UnitsSold             33-35
			Warranty              36;
Kind  Regards ,
markc