Question $18(2$ points$)$

Which of the following is not a reason why the sales effects of advertising are hard to see in changes in weekly sales figures?

Because advertising is ignored by most people

The effect of advertising is spread very thinly over time

There is a lot of 'noise' in the market

Advertising is rarely switched on and off neatly

Question $19(2$ points$)$

True or False: Your customers are just somebody else's customers who occasionally buy from you

True

False