A marketing company is interested in knowing the population percent of women who make the majority of household purchasing decisions. They randomly surveyed 200 households and found that in 120 of them, the woman made the majority of the purchasing decisions. n = a. Identify the following: x =, b. Which distribution should you use for this problem? p = Normal Distribution t-Distribution d. Find a 95% confidence interval for the population proportion of households where the women make the majority of the purchasing decisions. Solution A p(1-p) Identify values to plug into the formula p ±(za) Write solution first as p ± EBP: Write solution in interval notation: (.
A marketing company is interested in knowing the population percent of women who make the majority of household purchasing decisions. They randomly surveyed 200 households and found that in 120 of them, the woman made the majority of the purchasing decisions. n = a. Identify the following: x =, b. Which distribution should you use for this problem? p = Normal Distribution t-Distribution d. Find a 95% confidence interval for the population proportion of households where the women make the majority of the purchasing decisions. Solution A p(1-p) Identify values to plug into the formula p ±(za) Write solution first as p ± EBP: Write solution in interval notation: (.
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:5. A marketing company is interested in knowing the population percent of women who make the
majority of household purchasing decisions. They randomly surveyed 200 households and found
that in 120 of them, the woman made the majority of the purchasing decisions.
a. Identify the following: x =
b. Which distribution should you use for this problem?
n =
Normal Distribution
t-Distribution
d. Find a 95% confidence interval for the population proportion of households where the women
make the majority of the purchasing decisions.
Solution A
p(1-p)
Identify values to plug into the formula p ± ( za
Write solution first as p ± EBP:
Write solution in interval notation: (-
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