An advertiser claims 'eight out of every ten housewives can't tell Albatross margarine from butter!' A consumer's group sets out to test this claim, and finds that among the 75 of their members, 21 can distinguish between Albatross and butter. Would this cause you to doubt the advertiser's claim?
How do you create the formula for this problem?
This Solution contains over 100 words and calculations to aid you in understanding the Solution to these questions.