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 four percentage points? Complete parts (a) through (c) below. (Round up to the nearest integer.) b) Assume that a recent survey suggests that about 93% of computers use a new operating system. n = 17 (Round up to the nearest integer.) Enter your answer in the answer box and then click Check Answer. ? 1 part remaining Clear All Check Answer P Pearson