Suppose that a car company wants to determine the importance to consumers for service like OnStar, which offers drivers a wifi connection (among other things). Small/preliminary studies have concluded that about 59% of people would like an wifi connection in their car. (a) Use the given preliminary estimate to determine the sample size required to estimate the proportion of adult Americans who would like wifi capabilities in their car to within .05 with 95% confidence. (b) How would the interval be affected if 99% confidence interval was desired? Select an answer (c) Use the given preliminary estimate to determine the sample size required to estimate the proportion of adult Americans who would like wifi capabilities in their car to within .05 with 99% confidence. Question Help: Message instructor D Post to forum Submit Question Jump to Answer
Suppose that a car company wants to determine the importance to consumers for service like OnStar, which offers drivers a wifi connection (among other things). Small/preliminary studies have concluded that about 59% of people would like an wifi connection in their car. (a) Use the given preliminary estimate to determine the sample size required to estimate the proportion of adult Americans who would like wifi capabilities in their car to within .05 with 95% confidence. (b) How would the interval be affected if 99% confidence interval was desired? Select an answer (c) Use the given preliminary estimate to determine the sample size required to estimate the proportion of adult Americans who would like wifi capabilities in their car to within .05 with 99% confidence. Question Help: Message instructor D Post to forum Submit Question Jump to Answer
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 5E
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Transcribed Image Text:Suppose that a car company wants to determine the importance to consumers for service like OnStar,
which offers drivers a wifi connection (among other things). Small/preliminary studies have concluded
that about 59% of people would like an wifi connection in their car.
(a) Use the given preliminary estimate to determine the sample size required to estimate the proportion
of adult Americans who would like wifi capabilities in their car to within .05 with 95% confidence.
(b) How would the interval be affected if 99% confidence interval was desired?
Select an answer
(c) Use the given preliminary estimate to determine the sample size required to estimate the proportion
of adult Americans who would like wifi capabilities in their car to within .05 with 99% confidence.
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