The following was used as part of an internet advertising company's appeal to businesses:

The argument that Furniture Depot sales have increased because of internet ads lacks some important facts that must be addressed to substantiate the argument. The evidence that follows this description simply states that internet advertising helped increasing the sales without providing any support or proof to the main argument.

First, the argument assumes that the increase in sales at Furniture Depot is due to internet advertising. But there is no evidence that the people who bought furniture at Furniture Depot actually found out about ...