In a Gallup Poll, 441 of 507 adults said it

was "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?