Money supermarket stat confusion

[USER1999]

I keep hearing an annoying ms advert at the moment, which ends with some thing like:

99% of people would save money using ms. Sample based on 40% of consumers.

So is this actually 39.6% of every one, or is it 99% of every one extrapolated from the 99% of the 40% sample?

How old do you have to be to be considered a consumer? Are we talking a 40% sample of people likely to buy their products? 40% of people using their web site (isn't the other 60% more relevant?). A consumer of what? Oranges?

Stats? Love them. Who came up with this tosh, and can they please stop?

 

[Doon frae Troon]

Supermarkets really annoy me, they treat all customers like they are total idiots whilst they use 'Del Boy' price scams.
I go out of my way to point out their errors and if it is a bad one I ask to see the duty manager and seek an explanation.
This generally results in a shrug of his/her shoulders and a 'Don't know how that happened'.