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.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 6E
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Question
![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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