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Category > Statistics Posted 04 Jun 2017 My Price 6.00

A company manufacturing CDs is working on a new technology

 

51.     CDs. A company manufacturing CDs is working on a new technology. A random sample of 703 Internet users were asked: “As you may know, some CDs are being manu- factured so that you can only make one copy of the CD af- ter 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 90% confidence interval for this percentage.

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

 

 
 

Answers

Alpha Geek
(8)
Status NEW Posted 04 Jun 2017 04:06 AM My Price 6.00

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Attachments

file 1496551349-1494285_1_636320875922900831_90--confidence-interval-and-sample-size.xlsx preview (220 words )
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