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 4 percentage points? Complete parts (a) through (c) below.
A. Assume that nothing is known about the percentage of computers with new operating systems. (round up to the nearest integer)
n = ?
