Find the margin of error for the poll

Reference no: EM131419854

A May 2007 Gallup Poll found that only 11% of a random sample of 1003 adults approved of attempts to clone a human.

a) Find the margin of error for this poll if we want 95% confidence in our estimate of the percent of American adults who approve of cloning humans.

b) Explain what that margin of error means.

c) If we only need to be 90% confident, will the margin of error be larger or smaller? Explain.

d) Find that margin of error.

e) In general, if all other aspects of the situation remain the same, would smaller samples produce smaller or larger margins of error?

Reference no: EM131419854

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