Answered: The brand manager for a brand of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Transcribed Image Text: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 80% 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. n = (Round up to the nearest inteaer.)

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Transcribed Image Text: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 80% 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. n= 165 (Round up to the nearest integer.) b) Assume that a recent survey suggests that about 77% of adults have heard of the brand. n = (Round up to the nearest integer.)

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