For Exercises 1.1 to 1.3, see page 3; for 1.4, see page 5; and for 1.5, see page 6.
1.3 Who, what, and why for the restaurant discount coupon data.
What cases do the data describe? How many cases are there? How many variables are there? What are their definitions and units of measurement? What purpose do the data have?
1.3
Who: The cases are coupons; there are 7 cases. What: There are 6 variables—ID, Type, Name, Item, RegPrice, and DiscPrice. Only RegPrice and DiscPrice have units in dollars. Why: The data might be used to compare coupons to one another to see which are better. We would not want to draw conclusions about other coupons not listed.
coupons