The Personnel Director at a Large Company Studied the Types

Multiple Choice

The personnel director at a large company studied the types of foods that employees purchased from the company's food vending machines.The director noted the frequency with which employees purchased pre-packaged snack foods,fresh fruit,or dairy products.The goal of the study was to improve the availabilities of the types of food most commonly purchased.This type of data collection would best be considered as

A) a designed experiment.
B) an observational study.
C) a quota sample.
D) a random sample.