Question: A programmer plans to develop a new software system. In planning for the operating system that he willuse, he needs to estimate the percentage of

A programmer plans to develop a new software system. In planning for the operating system that he willuse, he needs to estimate the percentage of computers that use a new operating system. How many computers must be surveyed in order to be 95%confident that his estimate is in error by no more than twopercentage points question marks?

  1. Assumethatnothingisknownaboutthepercentageofcomputerswithnewoperatingsystems. [ n = ? ]
  2. Assume that a recent survey suggests that about 97% of computers use a new operating system. [ n= ? ]

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