A survey asked, "Do you think that homeless people are responsible for the situation they are in?" Of the 2,507 Americans surveyed, 1,404 said no. (a) Determine the sample proportion of Americans who think that homeless people are not responsible for the situation they are in. (Round your answer to the nearest whole number.) Sample proportion is % (b) With an 80% level of confidence, find the margin of error (MOE) associated with the sample proportion. (Give the answer to one decimal place, if needed.) MOE = % (c) With a 95% level of confidence, find the margin of error (MOE) associated with the sample proportion. (Give the answer to one decimal place, if needed.) MOE = % (d) The answer in part (c) is smaller than or larger than the answer in part (b). Why? In order to guarantee 95% accuracy, we must increase or decrease the error.
A survey asked, "Do you think that homeless people are responsible for the situation they are in?" Of the 2,507 Americans surveyed, 1,404 said no. (a) Determine the sample proportion of Americans who think that homeless people are not responsible for the situation they are in. (Round your answer to the nearest whole number.) Sample proportion is % (b) With an 80% level of confidence, find the margin of error (MOE) associated with the sample proportion. (Give the answer to one decimal place, if needed.) MOE = % (c) With a 95% level of confidence, find the margin of error (MOE) associated with the sample proportion. (Give the answer to one decimal place, if needed.) MOE = % (d) The answer in part (c) is smaller than or larger than the answer in part (b). Why? In order to guarantee 95% accuracy, we must increase or decrease the error.
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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Question
A survey asked, "Do you think that homeless people are responsible for the situation they are in?" Of the 2,507 Americans surveyed, 1,404 said no.
(a) Determine the sample proportion of Americans who think that homeless people are not responsible for the situation they are in. (Round your answer to the nearest whole number.)
Sample proportion is %
(b) With an 80% level of confidence, find the margin of error (MOE) associated with the sample proportion. (Give the answer to one decimal place, if needed.)
MOE = %
(c) With a 95% level of confidence, find the margin of error (MOE) associated with the sample proportion. (Give the answer to one decimal place, if needed.)
MOE = %
(d) The answer in part (c) is smaller than or larger than the answer in part (b). Why?
In order to guarantee 95% accuracy, we must increase or decrease the error.
Sample proportion is %
(b) With an 80% level of confidence, find the margin of error (MOE) associated with the sample proportion. (Give the answer to one decimal place, if needed.)
MOE = %
(c) With a 95% level of confidence, find the margin of error (MOE) associated with the sample proportion. (Give the answer to one decimal place, if needed.)
MOE = %
(d) The answer in part (c) is smaller than or larger than the answer in part (b). Why?
In order to guarantee 95% accuracy, we must increase or decrease the error.
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Part C of 95% level of confidence the margin of error associated with the sample proportion of 1.9% is incorrect, everything else is right.
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