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Mathematics, 16.11.2019 02:31, dpickard9848
Acompany manufacturing cds is working on a new technology. a random sample of 705 internet users were asked: "as you may know, some cds 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, 64% responded that they would buy the cd.
a) create a 99% confidence interval for this percentage.
b) if the company wants to cut the margin of error in half, how many users must they survey?
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Acompany manufacturing cds is working on a new technology. a random sample of 705 internet users wer...
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