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Name: A marketing firm is developing a new television advertisement for a la
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Description: A marketing firm is developing a new television advertisement for a large discount retail chain. A sample of 30 people is shown two potential ads and asked their preference. The results for ad #1 are as follow. Use Excel to develop a 99% confidence i

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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A marketing firm is developing a new television advertisement for a large discount retail chain. A sample of 30 people is shown two potential ads and asked their preference. The results for ad #1 are as follow. Use Excel to develop a 99% confidence interval estimate of the proportion of people in the population who will prefer ad #1.

Prefer Advertisement #1 yes no no yes yes no no no no yes no yes no no yes yes yes no yes yes no no no yes yes no yes yes no no

Enter your answers into the following table:

	A	B (Type Formula)	Value for B
1	Sample size
2	Response of Interest
3	Count for Response
4	Sample Proportion
5
6	Confidence Level
7	Level of Significance
8	z value
9
10	Standard Error
11	Margin of Error
12
13	Point Estimate
14	Lower Limit
15	Upper Limit

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