1. (20 pts) In a USA Today Internet Poll, readers responded voluntarily to the question, "Do you consume at least one caffeinated beverage every day?" Define the following regarding the study. a) The population is O all USA Readers. O all internet users that Respond to Polls O the set of responses to the internet poll of all USA Today Readers O the set of voluntary responses to the internet poll of all USA Today O the proportion of internet users that consume at least one caffeinated beverage per day. b) The sample is o all USA Readers internet users that respond to polls. O the number of internet users that Respond to Polls. O the percentage of USA Today Readers that responded to the USA Today internet poll. O the set of voluntary responses to the internet poll of USA Today Readers. O the proportion of USA Readers consume at least one caffeinated beverage per day