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Category > Statistics Posted 04 Jun 2017 My Price 6.00

Check that the assumptions and conditions are met for inference on proportions

 

45.     Internet music, again. A Gallup Poll (Exercise 29) asked Americans if the fact that they can make copies of songs on the Internet for free made them more likely—or less likely—to buy a performer’s CD. Only 13% responded that it made them “less likely.” The poll was based on a random sample of 703 Internet users.

a)    Check that the assumptions and conditions are met for inference on proportions.

b)    Find the 95% confidence interval for the true proportion of all U.S. Internet users who are “less likely” to buy CDs.

 

 
 

Answers

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

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Attachments

file 1496551405-1494279_1_636320890639414490_95--confidence-Interval.xlsx preview (239 words )
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