A poll was conducted to assess public support for the BC Liberal party before the last election. THe poll selected 510 people from the list of registered voters, and 33.3% of respondents indicated that they planned to vote for the BC Liberal Party.
a) What is the population of interest for this survey?
b) What is the parameter that is being estimated by the results of this survey?
c) Find the margin of error for the estimator in this survey for a 95% level of confidence
d) In part c, what does the 95% level of confidence imply in relation to the margin of error?
e) Suppose that someone conducting a similar study wishes to have a margin of error of 1%. What sample size is required to achieve a margin of error at least as small as 1%?