In a survey of 2075 adults in a certain country conducted during a period of economic uncertainty, 64% thought that wages paid to workers in industry were too low. The margin of error was 9 percentage points with 90% 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 90% confident 64% 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? O A. The interpretation is reasonable. O B. The interpretation is flawed. The interpretation suggests that this interval sets the standard for all the other intervals, which is not true. O C. The interpretation is flawed. The interpretation provides no interval about the population proportion. O D. The interpretation is flawed. The interpretation indicates that the level of confidence is varying. (b) We are 81% to 99% confident 64% 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? O A. The interpretation is reasonable. O 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. O D. The interpretation is flawed. The interpretation suggests that this interval sets the standard for all the other intervals, which is not true. (c) We are 90% confident that the interval from 0.55 to 0.73 contains the true proportion of adults in the country during the period of economic uncertainty who believed wages paid to workers in industry were too low. Is the interpretation reasonable? O A. The interpretation is reasonable. O B. The interpretation is flawed. The interpretation indicates that the level of confidence is varying. OC. The interpretation is flawed. The interpretation suggests that this interval sets the standard for all the other intervals, which is not true. O D. The interpretation is flawed. The interpretation provides no interval about the population proportion. (d) In 90% of samples of adults in the country during the period of economic uncertainty, the proportion who believed wages paid to workers in industry were too low is between 0.55 and 0.73. Is the interpretation reasonable?

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In a survey of 2075 adults in a certain country conducted during a period of economic uncertainty, 64% thought that wages paid to workers in industry were too low. The margin of error was 9 percentage points with 90% 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 90% confident 64% 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?
O A. The interpretation is reasonable.
B. The interpretation is flawed. The interpretation suggests that this interval sets the standard for all the other intervals, which is not true.
C. The interpretation is flawed. The interpretation provides no interval about the population proportion.
D. The interpretation is flawed. The interpretation indicates that the level of confidence is varying.
(b) We are 81% to 99% confident 64% 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?
O A. The interpretation is reasonable.
B. The interpretation is flawed. The interpretation provides no interval about the population proportion.
C. The interpretation is flawed. The interpretation indicates that the level of confidence is varying.
D. The interpretation is flawed. The interpretation suggests that this interval sets the standard for all the other intervals, which is not true.
(c) We are 90% confident that the interval from 0.55 to 0.73 contains the true proportion of adults in the country during the period of economic uncertainty who believed 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 indicates that the level of confidence is varying.
C. The interpretation is flawed. The interpretation suggests that this interval sets the standard for all the other intervals, which is not true.
D. The interpretation is flawed. The interpretation provides no interval about the population proportion.
(d) In 90% of samples of adults in the country during the period of economic uncertainty, the proportion who believed wages paid to workers in industry were too low is between 0.55 and 0.73.
Is the interpretation reasonable?
Transcribed Image Text:In a survey of 2075 adults in a certain country conducted during a period of economic uncertainty, 64% thought that wages paid to workers in industry were too low. The margin of error was 9 percentage points with 90% 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 90% confident 64% 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? O A. The interpretation is reasonable. B. The interpretation is flawed. The interpretation suggests that this interval sets the standard for all the other intervals, which is not true. C. The interpretation is flawed. The interpretation provides no interval about the population proportion. D. The interpretation is flawed. The interpretation indicates that the level of confidence is varying. (b) We are 81% to 99% confident 64% 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? O A. The interpretation is reasonable. B. The interpretation is flawed. The interpretation provides no interval about the population proportion. C. The interpretation is flawed. The interpretation indicates that the level of confidence is varying. D. The interpretation is flawed. The interpretation suggests that this interval sets the standard for all the other intervals, which is not true. (c) We are 90% confident that the interval from 0.55 to 0.73 contains the true proportion of adults in the country during the period of economic uncertainty who believed 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 indicates that the level of confidence is varying. C. The interpretation is flawed. The interpretation suggests that this interval sets the standard for all the other intervals, which is not true. D. The interpretation is flawed. The interpretation provides no interval about the population proportion. (d) In 90% of samples of adults in the country during the period of economic uncertainty, the proportion who believed wages paid to workers in industry were too low is between 0.55 and 0.73. Is the interpretation reasonable?
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Follow-up Question
In a survey of 2075 adults in a certain country conducted during a period of
economic uncertainty, 67% thought that wages paid to workers in industry were
too low. The margin of error was 3 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.
interval sets the standard for all the other intervals, which is not true.
OD. The interpretation is flawed. The interpretation provides no interval
about the population proportion.
(d) In 95% of samples of adults in the country during the period of economic
uncertainty, the proportion who believed wages paid to workers in industry were
too low is between 0.64 and 0.70.
Is the interpretation reasonable?
OA. The interpretation is reasonable.
B. The interpretation is flawed. The interpretation suggests that this
interval sets the standard for all the other intervals, which is not true.
C. The interpretation is flawed. The interpretation indicates that the level
of confidence is varying.
O D. The interpretation is flawed. The interpretation provides no interval
about the population proportion.
Transcribed Image Text:In a survey of 2075 adults in a certain country conducted during a period of economic uncertainty, 67% thought that wages paid to workers in industry were too low. The margin of error was 3 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. interval sets the standard for all the other intervals, which is not true. OD. The interpretation is flawed. The interpretation provides no interval about the population proportion. (d) In 95% of samples of adults in the country during the period of economic uncertainty, the proportion who believed wages paid to workers in industry were too low is between 0.64 and 0.70. Is the interpretation reasonable? OA. The interpretation is reasonable. B. The interpretation is flawed. The interpretation suggests that this interval sets the standard for all the other intervals, which is not true. C. The interpretation is flawed. The interpretation indicates that the level of confidence is varying. O D. The interpretation is flawed. The interpretation provides no interval about the population proportion.
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