Question

In a Gallup Poll, 441 of 507 adults said it was “morally wrong” to clone humans.
a. What proportion of the respondents believed it morally wrong to clone humans?
b. Find a 95% confidence interval for the population proportion who believed it is morally wrong to clone humans. Assume that Gallup used a simple random sample.
c. Find an 80% confidence interval (using a z* of 1.28 if you are calculating by hand).
d. Which interval is wider, and why?


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  • CreatedJuly 16, 2015
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