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 95​% confident that his estimate is in error by no more than five percentage points? Complete parts​ (a) through​ (c) below. Question content area bottom Part 1 ​a) Assume that nothing is known about the percentage of computers with new operating systems. n=385385 ​(Round up to the nearest​ integer.) Part 2 ​b) Assume that a recent survey suggests that about 86​% of computers use a new operating system. n=enter your response here ​(Round up to the nearest​ integer.)

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