Indicate whether each statement below is true or false. If false, explain why. a) Asking viewers to call into an 800 number is a good way to obtain a representative sample. b) When writing a survey, it's a good idea to include as many questions as possible to ensure efficiency and to lower costs. c) A recent poll on a website was valid because the sample size was over 1,000,000 respondents. d) Malls are not necessarily good places to conduct surveys because people who frequent malls may not be representative of the population at large. Question content area bottom Part 1 a) Choose the correct answer below. A. True B. False; it typically results in a voluntary response sample and may be biased. C. False; it typically results in a random sample with a nonresponse bias. D. False; it typically results in a convenience sample and may be biased