Question
In: Statistics and Probability
In 2011, when the Gallup organization polled a random sample of investors, 34% rated gold the...
In 2011, when the Gallup organization polled a random sample of investors, 34% rated gold the best long-term investment. However, in April of 2013 Gallup surveyed another random sample of investors. Respondents were asked to select the best long-term investment from a list of possibilities. Only 241 of the 1005 respondents chose gold as the best long-term investment. • Compute the standard error of the sample proportion. • Compute and describe a 95% confidence interval in the context of the case. • Do you think opinions about the value of gold as a long-term investment have really changed from the old 34% favorable rate, or do you think this is a sample variability? Explain your answer using the calculated statistics.
Solutions
orchestra answered 2 years agoRelated Solutions
In 2011, when the Gallup organization polled investors, 34% rated gold the best long-term investment. But...
In 2011, when the Gallup organization polled investors, 34%
rated gold the best long-term investment. But in April of 2013
Gallup surveyed a random sample of U.S. adults. Respondents were
asked to select the best long-term investment from a list of
possibilities. Only 241 of the 1005 respondents chose gold as the
best long-term investment. By contrast, only 91 chose bonds.
a. Compute the standard error for each sample proportion.
Compute and describe a 95% confidence interval in the context...
In 2011, when the Gallup organization polled investors, 34% rated gold the best long-term investment. In...
In 2011, when the Gallup organization polled investors, 34%
rated gold the best long-term investment. In April of 2013 Gallup
surveyed a random sample of U.S. adults. Respondents were asked to
select the best long-term investment from a list of possibilities.
Only 241 of the 1005 respondents chose gold as the best long-term
investment. By contrast, only 91 chose bonds.
Compute the standard error for each sample proportion. Compute
and describe a 95% confidence interval in the context of the...
In 2011, when the Gallup organization polled investors, 34% rated gold the best long-term investment. In...
In 2011, when the Gallup organization polled investors, 34%
rated gold the best long-term investment. In April of 2013 Gallup
surveyed a random sample of U.S. adults. Respondents were asked to
select the best long-term investment from a list of possibilities.
Only 241 of the 1005 respondents chose gold as the best long-term
investment. By contrast, only 91 chose bonds.
Compute the standard error for each sample proportion. Compute
and describe a 95% confidence interval in the context of the...
When the gallup organization polled investors, 34% rated gold the best long-term investment.... Question: In 2011,...
When the gallup organization polled investors, 34% rated gold
the best long-term investment.... Question: In 2011, when the
Gallup organization polled investors, 34% rated gold the best
long-term investm... In 2011, when the Gallup organization polled
investors, 34% rated gold the best long-term investment. But in
April of 2013 Gallup surveyed a random sample of U.S. adults.
Respondents were asked to select the best long-term investment from
a list of possibilities. Only 241 of the 1005 respondents chose
gold as...
In 2011, when the Gallup organization polled investors, 34% rated gold the best long-term investment. However,...
In 2011, when the Gallup organization polled investors, 34%
rated gold the best long-term investment. However, in April of 2013
Gallup surveyed a random sample of U.S. adults. Respondents were
asked to select the best long-term investment from a list of
possibilities. Only 241 of the 1005 respondents chose gold as the
best long-term investment.
• Compute and describe a 95% confidence interval in the context
of the case.
In 2011, when the Gallup organization polled investors, 34% rated gold the best long-term investment. But in April of 2013 Gallup surveyed a random sample of U.S. adults.
In 2011, when the Gallup organization polled investors, 34% rated gold the best long-term investment. But in April of 2013 Gallup surveyed a random sample of U.S. adults. Respondents were asked to select the best long-term investment from a list of possibilities. Only 241 of the 1005 respondents chose gold as the best long-term investment. By contrast, only 91 chose bonds. a. Compute the standard error for each sample proportion. Compute and describe a 95% confidence interval in the context...
In 2011, when the Gallup organization polled investors, 31% rated gold the best long-term investment. But...
In 2011, when the Gallup organization polled investors, 31%
rated gold the best long-term investment. But in April of 2013
Gallup surveyed a random sample of U.S. adults. Respondents were
asked to select the best long-term investment from a list of
possibilities. Only 238 of the 950 respondents chose gold as the
best long-term investment. By contrast, only 92 chose bonds.
a. Compute the standard error for each sample proportion.
Compute and describe a 95% confidence interval in the context...
n 2011, when the Gallup organization polled investors, 26% rated gold the best long-term investment. But...
n 2011, when the Gallup organization polled investors, 26% rated
gold the best long-term investment. But in April of 2013 Gallup
surveyed a random sample of U.S. adults. Respondents were asked to
select the best long-term investment from a list of possibilities.
Only 189 of the 760 respondents chose gold as the best long-term
investment. By contrast, only 87 chose bonds.
a. Compute the standard error for each sample proportion.
Compute and describe a 90% confidence interval in the context...
The Gallup survey company conducted a poll in May 2011. Researchers asked a random sample of...
The
Gallup survey company conducted a poll in May 2011. Researchers
asked a random sample of about 1000 U.S. adults the following
question: “From what you know or have read about raising the debt
ceiling, would you want your member of Congress to vote in favor
of, that is, for raising the debt ceiling, to vote against raising
the debt ceiling, or do you not know enough about this issue to
say?” Forty-eight percent of the adults who responded said...
The Gallup survey company conducted a poll in May 2011. Researchers asked a random sample of...
The Gallup survey company conducted a poll in May 2011.
Researchers asked a random sample of about 1000 U.S. adults the
following question: “From what you know or have read about raising
the debt ceiling, would you want your member of Congress to vote in
favor of, that is, for raising the debt ceiling, to vote against
raising the debt ceiling, or do you not know enough about this
issue to say?” Forty-eight percent of the adults who responded said...
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