Question 8 The Excite Poll is an online poll at poll.excite.com. You click on an answer to become part of the sample. One poll question was "Do you refer Not yet watching first-run movies at a movie theatre, or waiting until they are available on home video or pay-per-view?" A total of 8896 people in the USA answered responded with 1118 saying they preferred theatres. Marked out of 1.0 From this survey you can conclude that P Flag question Select one: O a. the poll uses voluntary response, so the results tell us little about the population of all adults. O b. Americans prefer watching movies at home. O c. a larger sample is necessary. O d. movie theatres should lower their prices. Question 9 When the method for selecting subjects produces a sample that does not represent the population of interest, the problem is called Not yet answered Select one: Marked out of 1.0 O a. Nonresponse bias F Flag question O b. Lack of accuracy O c. Selection bias O d. Response bias Question 10 Consider the differences between a census and a sample survey. Not yet Which of the following sentences is a true statement? answered Marked out of 1.0 Select one: P Flag question O a. A census is only done when measuring the units will destroy them. O b. In a census the whole population is measured. O c. A sample survey is only done when measuring the units will destroy them. O d. Only a census will give accurate answers