Suppose the marketing company did a survey. They randomly surveyed 145 households and found that in 42 of them, the woman made the majority of the purchasing decisions. We are interested in the population proportion of households where women make the majority of the purchasing decisions.
Suppose the marketing company did a survey. They randomly surveyed 145 households and found that in 42 of them, the woman made the majority of the purchasing decisions. We are interested in the population proportion of households where women make the majority of the purchasing decisions.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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![Suppose the marketing company did a survey. They randomly surveyed 145 households and found that in 42
of them, the woman made the majority of the purchasing decisions. We are interested in the population
proportion of households where women make the majority of the purchasing decisions.
What is the mamberof househotds where women make the majority of purehasing deeisions?
b What is the number of househotds surveyed?
sWhat is the sample proportion?
(Round to four decimal places)
d) What is the sampling distribution standard deviation?
(Round to four decimal places)
e) What is the critical Z score for 92% confidence interval?
(Round to 2 decimal places).
f) What is the Error Bound or Margin of Error?
(Round to four decimal places)
g) What is the Lower and Upper bound values for the 92% confidence interval?
] (Round to four decimal places)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8a087d08-9fc6-4343-a6d2-250b91190b8d%2F46f64d29-e7fd-4209-a5f8-a47277b41c38%2F8zogf4n_processed.png&w=3840&q=75)
Transcribed Image Text:Suppose the marketing company did a survey. They randomly surveyed 145 households and found that in 42
of them, the woman made the majority of the purchasing decisions. We are interested in the population
proportion of households where women make the majority of the purchasing decisions.
What is the mamberof househotds where women make the majority of purehasing deeisions?
b What is the number of househotds surveyed?
sWhat is the sample proportion?
(Round to four decimal places)
d) What is the sampling distribution standard deviation?
(Round to four decimal places)
e) What is the critical Z score for 92% confidence interval?
(Round to 2 decimal places).
f) What is the Error Bound or Margin of Error?
(Round to four decimal places)
g) What is the Lower and Upper bound values for the 92% confidence interval?
] (Round to four decimal places)
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