At your summer job with a research company, you must get a random sample of people from your town to answer a question about spending habits. which of the following methods is most likely to be random?
a: you survey customers at the local shopping mall.
b: you survey people chosen randomly from the local phonebook.
c: you survey several of your friends.
d: you survey customers at a popular restaurant.

Right medical introduced a new implant that carries a five-year warranty against manufacturer’s defects. based on industry experience with similar product introductions, warranty costs are expected to approximate 2% of sales. sales were $8 million and actual warranty expenditures were $42,750 for the first year of selling the product. what amount (if any) should right report as a liability at the end of the year?