The Brand Manager For A Brand Of Toothpaste Must Plan A Campaign Designed To Increase Brand Recognition He Wants To Fir 1 (31.52 KiB) Viewed 24 times
The Brand Manager For A Brand Of Toothpaste Must Plan A Campaign Designed To Increase Brand Recognition He Wants To Fir 2 (22.35 KiB) Viewed 24 times
The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognition. He wants to first determine the percentage of adults who have heard of the brand. How many adults must he survey in order to be 95% confident that his estimate is within five percentage points of the true population percentage? Complete parts (a) through (c) below. a) Assume that nothing is known about the percentage of adults who have heard of the brand, na 385 (Round up to the nearest integer.) b) Assume that a recent survey suggests that about 77% of adults have heard of the brand. na (Round up to the nearest integer.)
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 99% confident that his estimate is in error by no more than three percentage points ? Complete parts (a) through (c) below. a) Assume that nothing is known about the percentage of computers with new operating systems. n=0 (Round up to the nearest integer.)
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