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

A programmer plans to develop a new software system. In planning for the operating system that he will use, he needs to estimate the percentage of computers that use a new operating system. How many computers must be surveyed in order to be 90% confident that his estimate is in error by no more than two percentage point Complete parts (a) through (c) below. b) Assume that a recent survey suggests that about 86% of computers use a new operating system.

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