17 Jul Using the internet, find the results of a poll on
Using the internet, find the results of a poll on the upcoming US presidential election involving a yes/no question. Answer the following questions regarding your example:1. What is the source?2. What is the yes/no question?3. What is the value of n (number of people sampled?) If unknown, find a new poll.4. What is being counted as a yes in this poll?5. Are the n observations independent? Explain.6. What do the results of the poll say, in terms of a percentage?7. Note that the true value of p is unknown in a poll since the results are only based on a sample, not all possible values in the population. The percentage we find in our sample poll is a guess at what the real value of p is. The question is, is it a good guess? Based on the results of your polling example, what do you think? Explain. (Think about section 3.1 on surveys and samples.)8. Look for another source that shows the polling results for the same exact question you’ve just examined, and compare the results. Are they close/different? Why? Look at things like sample size, question wording, sources of bias, etc. Which source do you believe more?9. We do expect results from different samples will differ, but by how much? This will be discussed in our upcoming section on confidence intervals and margin of error. For now, do you see a margin of error given in your polling results, and if so, are the results from the two polls you looked at close enough to be within that margin of error? Discuss briefly.Answer all the questions above.
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