6. A nationwide poll asked a random sample of 800 respondents whether they support (Yes/No) legalizing marijuana nationwide. 66% of respondents said Yes. a. Calculate the standard error for this poll. For the standard error calculation, follow the convention among pollsters by using a proportion of .5. b. What is the margin of error for this poll? c. What is the confidence interval for this poll's estimate? d. Can we be 95% sure that a majority (more than 50%) of Americans support legalizing marijuana? (You can answer this by calculating the zscore, or by using the confidence interval from above.)