Even more on downloading music from the Internet. The following quotation is from a survey of Internet users. The sample size for the survey was 1371. Since 18% of those surveyed said they download music, the sample size for this subsample is 247.
Among current music down loaders, 38% say they are downloading less because of the RIAA suits .... About a third of current music down loaders say they use peer-to-peer networks ... 24% of them say they swap files using email and instant messaging; 20% download files from music-related Web sites like those run by music magazines or musician homepages. And while online music services like iTunes are far from trumping the popularity of file-sharing networks, 17% of current music down loaders say they are using these paid services.
Overall, 7% of Internet users say they have bought music at these new services at one time or another, including 3% who currently use paid services.
(a) For each percent quoted, give the margin of error. You should express these in percents, as given in the quotation.
(b) Rewrite the paragraph more concisely and include the margins of error.
(c) Pick either side A or side B below and give arguments in favor of the view that you select.
(A) The margins of error should be included because they are necessary for the reader to properly interpret the results
(B) The margins of error interfere with the flow of the important ideas. It would be better to just report one margin of error and say that all the others are no greater than this number.
If you choose View B, be sure to give the value of the margin of error that you report.