Question
In: Statistics and Probability
The Wall Street Journal reported that long term Treasury bonds had a mean return of 24.03%...
The Wall Street Journal reported that long term Treasury bonds had a mean return of 24.03% in 2008. Assume that the returns for the long term Treasury bonds were distributed as a normal random variable, with a mean of 24.03 and a standard deviation of 10. If you select an individual Treasury bond from this population, what is the probability that it would have a return of...
a. less than 0 (a loss)?
b. between 10 and 20 ?
c. greater than 10 ?
If you select a random sample of 4 Treasure bonds from this population, what is the probability that the sample would have a mean return of...
d. less than 0 (a loss)?
e. between 10 and 20 ?
f. greater than 10 ?
g. Compare your results in parts (d) through (f) to those in parts (a) through (c)
Can you show how this is done in Excel.
Solutions
orchestra answered 1 year agoRelated Solutions
The Wall Street Journal reported that long term Treasury bonds had a mean return of 24.03%...
The Wall Street Journal reported that long term Treasury bonds
had a mean return of 24.03% in 2008. Assume that the returns for
the long term Treasury bonds were distributed as a normal random
variable, with a mean of 24.03 and a standard deviation of 10. If
you select an individual Treasury bond from this population, what
is the probability that it would have a return of...
a. less than 0 (a loss)?
b. between 10 and 20 ?
c....
The Wall Street Journal reported that the age at first startup for 90% of entrepreneurs was...
The Wall Street Journal reported that the age at first startup
for 90% of entrepreneurs was 29 years of age or less and the age at
first startup for 10% of entrepreneurs was 30 years of age or more.
(a) Suppose a sample of 200 entrepreneurs will be taken to learn
about the most important qualities of entrepreneurs. Show the
sampling distribution of p where p is the sample proportion of
entrepreneurs whose first startup was at 29 years of...
The Wall Street Journal reported that the age at first startup for 25% of entrepreneurs was...
The Wall Street Journal reported that the age at first startup
for 25% of entrepreneurs was 29 years of age or less and the age at
first startup for 75% of entrepreneurs was 30 years of age or more.
(a) Suppose a sample of 200 entrepreneurs will be taken to learn
about the most important qualities of entrepreneurs. Show the
sampling distribution of p where p is the sample proportion of
entrepreneurs whose first startup was at 29 years of...
QUESTION 1 The Wall Street Journal reported that the average amount of time that a French...
QUESTION 1
The Wall Street Journal reported that the average
amount of time that a French person spends eating lunch at a
restaurant is 22 minutes. Perform a hypothesis test to determine if
a difference exists between the average time an American spends
eating lunch when compared to a person from France. The following
data represents the time, in minutes, that random French and
American diners spent at lunch. Assume that the population
variances are unequal.
American
21
17
17...
3) The Wall Street Journal reported that recipients of a bachelor degree with major in business...
3) The Wall Street Journal reported that recipients of a
bachelor degree with major in business receive average starting
salaries of $55,000 in 2017, with a standard deviation of $4,000. A
sample of 100 salaries from business majors collected in 2018 shows
a mean starting salary of $ $54,000. You are hired as a
statistician to investigate whether there are salary differences
for business majors in 2018 with respect to 2017. Allow for 5%
error on a two tail test....
3) The Wall Street Journal reported that recipients of a bachelor degree with major in business...
3) The Wall Street Journal reported that recipients of a
bachelor degree with major in business receive average starting
salaries of $55,000 in 2017, with a standard deviation of $4,000. A
sample of 100 salaries from business majors collected in 2018 shows
a mean starting salary of $ $54,000. You are hired as a
statistician to investigate whether there are salary differences
for business majors in 2018 with respect to 2017. Allow for 5%
error on a two tail test....
3) The Wall Street Journal reported that recipients of a bachelor degree with major in business...
3) The Wall Street Journal reported that recipients of a
bachelor degree with major in business receive average starting
salaries of $55,000 in 2017, with a standard deviation of $4,000. A
sample of 100 salaries from business majors collected in 2018 shows
a mean starting salary of $ $54,000. You are hired as a
statistician to investigate whether there are salary differences
for business majors in 2018 with respect to 2017. Allow for 5%
error on a two tail test....
2 a) The Wall Street Journal reported in January 2018 that the makers of many household...
2 a) The Wall Street Journal reported in January 2018 that the
makers of many household goods have increased the price of
household/personal care products by 2.9% from prices in the
previous year. If the elasticity of demand were 0.48, then we can
predict that the quantity of household products should have ______
( increased ;decreased ) by _________. Show calculation/method
here:
b). For this question, write the correct elasticity measure
below the product you think it matches best then...
As reported in the Wall Street Journal in November 2016, the 11 countries that make up...
As reported in the Wall Street Journal in November 2016, the 11
countries that make up the oil cartel OPEC agreed to each cut their
oil production over 2017 by 2% in an effort to raise the price of
oil and increase their profits (since the demand for oil is
inelastic). Let’s use a simplified one-off game with only two
countries (Iran and Saudi Arabia) to analyze the strategic
interaction between the countries and the likely impact on oil
revenues...
The Wall Street Journal reported that 33% of taxpayers with adjusted gross incomes between $30,000 and...
The Wall Street Journal reported that 33% of taxpayers with adjusted gross incomes between $30,000 and $60,000 itemized deductions on their federal income tax return. The mean amount of deductions for this population of taxpayers was $15,071. Assume that the standard deviation is 82,790. Use 2-table. a. What is the probability that a sample of taxpayers from this income group who have itemized deductions will show a sample mean within $200 of the population mean for each of the following sample...
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