Big Deal department store wants to conduct a survey of its customers to determine which type of promotion they prefer:
• Big Bucks, which they earn each time they shop, or
• Power Points, which they can redeem for coupons
They will ask their customers, "Which promotion do you prefer, Big Bucks or Power Points?"
Which of the following methods of surveying their customers will allow Big Deal to make valid
conclusions about their customers' preferences?
Ask customers who are redeeming Big Bucks which they prefer.
Ask every customer who shops on a particular Saturday between 8 a. m. and
10 a. m. for the Early Bird Promotion.
For a period of a year, ask every hundredth customer who enters the store
which they prefer
Ask 100 customers who are shopping at Big Deal's competitor, Shop Til You
Dend
A