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.       Question content area bottom Part 1 ​a) Assume that nothing is known about the percentage of adults who have heard of the brand.   n=enter your response here ​(Round up to the nearest​ integer.)

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter2: Working With Real Numbers
Section2.3: Rules For Addition
Problem 8P
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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.
 
 
 

Question content area bottom

Part 1
​a) Assume that nothing is known about the percentage of adults who have heard of the brand.
 
n=enter your response here
​(Round up to the nearest​ integer.)
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