You have been asked to estimate the proportion of households in Chicago that have two or more vehicles. a) How many households would you need to sample to be within 4 percent of the proportion of all households in Chicago that have two or more vehicles at a 95% level of confidence. b) You conduct a small preliminary sample, and you obtain a sample pr
You have been asked to estimate the proportion of households in Chicago that have two or more vehicles. a) How many households would you need to sample to be within 4 percent of the proportion of all households in Chicago that have two or more vehicles at a 95% level of confidence. b) You conduct a small preliminary sample, and you obtain a sample pr
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 3E
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You have been asked to estimate the proportion of households in Chicago that have two or more vehicles.
a) How many households would you need to sample to be within 4 percent of the proportion of all households in Chicago that have two or more vehicles at a 95% level of confidence.
b) You conduct a small preliminary sample, and you obtain a sample proportion of 23% that have two or more cars. Using this new information, what
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