A vendor opens a small booth at a supermarket to offer customers a taste of a new beverage. The staff at the booth offers the beverage to adults who pass through the soda aisle of the store near a...

A vendor opens a small booth at a supermarket to offer customers a taste of a new beverage. The staff at the booth offers the beverage to adults who pass through the soda aisle of the store near a display of the product. Customers who react favorably receive a discount coupon toward future purchases.

(a) Population

(b) Parameter of interest

(c) Sampling frame

(d) Sample size

(e) Sampling design, including whether randomization was employed

(f) Any potential sources of bias or other problems with the survey or sample