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 ad 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 integer.)
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 ad 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 integer.)
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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![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.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe5cdd7c1-ec18-4c7a-b878-9374ddd20da6%2F25d5c4a4-cbe8-49ea-a46b-a24b4f7f8819%2Ftgjazi_processed.png&w=3840&q=75)
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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Follow-up Question
![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.)](https://content.bartleby.com/qna-images/question/e5cdd7c1-ec18-4c7a-b878-9374ddd20da6/c770fbbe-c784-4068-91b2-fdc70d1995f8/a4gnzqs_thumbnail.png)
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.)
Solution
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