Create a 95 confidence interval for this percentage if the

Reference no: EM13632899

A company manufacturing cds is working on a new technology. A random sample of 718 internet users were asked: "as you may know, some cd's are being manufactured so that you can only make one copy of the CD after you purchase it. Would you buy a CD with this technology, or would you refuse to buy it even if it was one you would normally buy?" Of these users, 62% responded that they would buy the CD.

A) Create a 95% confidence interval for this percentage?

B) If the companuy wants to cut the margin of error in half, how many users they must survey?

Reference no: EM13632899

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