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Solve for B

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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In a survey of 2085 adults in a certain country conducted during a period of economic uncertainty, 66% thought that wages paid to workers in industry were too low. The margin of error was 2 percentage points with 95% confidence. For parts (a) through (d) below, which represent a reasonable interpretation of the survey results? For those that are not reasonable, explain the flaw. (a) We are 95% confident 66% of adults in the country during the period of economic uncertainty felt wages paid to workers in industry were too low Is the interpretation reasonable? A. The interpretation is reasonable. B. The interpretation is flawed. The interpretation provides no interval about the population proportion. OC. The interpretation is flawed. The interpretation indicates that the level of confidence is varying OD. The interpretation is flawed. The interpretation suggests that this interval sets the standard for all the other intervals, which is not true. (b) We are 93% to 97% confident 66% of adults in the country during the period of economic uncertainty felt wages paid to workers in industry were too low. Is the interpretation reasonable? OA. The interpretation is reasonable. OB. The interpretation is flawed. The interpretation provides no interval about the population proportion. OC. The interpretation is flawed. The interpretation suggests that this interval sets the standard for all the other intervals, which is not true. OD. The interpretation is flawed. The interpretation indicates that the level of confidence is varying.
Transcribed Image Text:In a survey of 2085 adults in a certain country conducted during a period of economic uncertainty, 66% thought that wages paid to workers in industry were too low. The margin of error was 2 percentage points with 95% confidence. For parts (a) through (d) below, which represent a reasonable interpretation of the survey results? For those that are not reasonable, explain the flaw. (a) We are 95% confident 66% of adults in the country during the period of economic uncertainty felt wages paid to workers in industry were too low Is the interpretation reasonable? A. The interpretation is reasonable. B. The interpretation is flawed. The interpretation provides no interval about the population proportion. OC. The interpretation is flawed. The interpretation indicates that the level of confidence is varying OD. The interpretation is flawed. The interpretation suggests that this interval sets the standard for all the other intervals, which is not true. (b) We are 93% to 97% confident 66% of adults in the country during the period of economic uncertainty felt wages paid to workers in industry were too low. Is the interpretation reasonable? OA. The interpretation is reasonable. OB. The interpretation is flawed. The interpretation provides no interval about the population proportion. OC. The interpretation is flawed. The interpretation suggests that this interval sets the standard for all the other intervals, which is not true. OD. The interpretation is flawed. The interpretation indicates that the level of confidence is varying.
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