Question
In: Statistics and Probability
the average income in jefferson county is $32,000 with standard deviation of $12000. what is the...
the
average income in jefferson county is $32,000 with standard
deviation of $12000. what is the probability that a randomly
selected person makes under $30,000?
Solutions
Expert Solution
: Average income in Jefferson county
We wish to find ,
Probability that randomely selected person makes under $30000 is 0.4325
orchestra answered 2 years agoRelated Solutions
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In a group of 66 Mummers, the average income was $62,000 with a standard deviation of $22,000....
In a group of 66 Mummers, the average income was
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determine if the average income of a Mummer is significantly
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Write the appropriate null and alternative hypotheses for the
hypothesis test that is relevant to this problem.
Find the test statistic.
Find the critical value for α=0.05.
What is the result of the hypothesis test? Why?
Find the critical value for α=0.01.
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In a group of 66 Mummers, the average income was $62,000 with a standard deviation of $22,000....
In a group of 66 Mummers, the average income was
$62,000 with a standard deviation of $22,000. We are interested to
determine if the average income of a Mummer is significantly
different than $50,000.
Write the appropriate null and alternative hypotheses for the
hypothesis test that is relevant to this problem.
Find the test statistic.
Find the critical value for α=0.05.
What is the result of the hypothesis test? Why?
Find the critical value for α=0.01.
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The standard deviation of a portfolio: Multiple Choice is a weighted average of the standard deviations...
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Multiple Choice
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individual securities held in the portfolio.
is an arithmetic average of the standard deviations of the
individual securities which comprise the portfolio.
can never be less than the standard deviation of the most risky
security in the portfolio.
can be less than the standard deviation of the least risky
security in the portfolio.
must be equal to or greater than the lowest...
Portfolio Average Return Standard Deviation Beta A &nb
Portfolio
Average Return Standard
Deviation Beta
A
14.7%
18.6%
1.47
B
8.8
14.2
.78
C
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16.0
1.22
The risk-free rate is 4.5 percent and the market risk
premium is 7 percent.
What is the Treynor ratio of a
portfolio comprised of 30 percent portfolio A, 20 percent portfolio
B, and 50 percent portfolio C?
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