Statistics Assignment | Professional Writing Services
2.4 an online survey. you go to a website to access a news story. In order to access the story, you are asked to answer a brief survey. If you choose not to answer the survey, you can only access the article for a fee. this method for obtaining a sample is an example of (a) simple random sampling. (b) random sampling, but not simple random sampling, because people visit the website at random. (c) a convenience sample. (d) a write-in opinion poll.
2.10 more instant opinion. In early 2015, the drudge report ran an online poll asking participants to vote for who they preferred for the republic presidential candidate. The choices were Jeb Bush, Ben Carson, Chris Christie, Ted Cruz, Mike Huckabee, Sarah Palin, Rand Paul, Rick Santorum, Donald Trump, Rick Perry, Carly Florina, Marco Rubio, and Scott Walker. When the poll closed in February 2015, Scott Walker had received 199,095 votes (44%), Ted Cruz had received 58,844 votes (13%), Rand Paul had received 51,770 votes (12%), Ben Carson had received 37,945 votes (8%), Donald Trump had received 23,974 votes (5%), Jeb Bush had received 18,864 votes (4%), Marco Rubio had received 14,995 votes (3%), Rick Perry had received 6268 votes (1%), Mike Huckabee had received 6259 votes (1%), Chris Christie had received 5726 votes (1%), Rick Santorum had received 3038 votes (1%), and Carly Fiorina had received 2291 votes (1%). (a) what is the sample size for this poll?
(b) the sample size for this poll is much larger than is typical for polls such as the Gallup Poll. Explain why the poll may give unreliable information, even with such a large sample size.
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