Indicate whether each statement below is true or false. If false. explain why. a] Asking viewers to call into an 300 number is a good way In obtain a representative sample. b) When writing a survey' it's a good idea to include as many questions as possible to ensure etciency and to lower costs c] Arecent 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. a] Choose the coned answer below 0 A. True 0 B. False' it typically result; in a convenience sample and may be biased O C. False' it typically result; in a random sample with a nonresponse bias 0 D. False' it typically result; in a voluntary response sample and may be biased. b) Choose the correct answer below. 0 A. False' making a survey too long makes it a convenience sample for the researchers but also makes the survey biased O B. False' more questions result in more data, which raises costs. 0 C. False. making a survey too long may reduce the response rate and introduce nonresponse bias. 0 D. True c) Choose the correct answer below. 0 A. True 0 B. False. the poll would need to be on one more website and have an equal sample size. 0 C. False. the sample would need to be about twice as large 0 D. False. even a large biased survey is still biased d) Choose the correct answer below. 0 A. False. malls produce a systematic sampling of the population. because everyone eventually 90% to a mail. 0 B. False. the people at any mail are representative of the community at large. because everyone eventually gm to a mail. 0 C. True 0 D. False. the people at any mail are a simple random sample at the population, because everyone eventually goes to a mall