Question
In: Statistics and Probability
According to Money magazine, Maryland had the highest median annual household income of any state in 2018 at $75,847.
You may need to use the appropriate appendix table to answer this question.
According to Money magazine, Maryland had the highest median annual household income of any state in 2018 at $75,847. Assume that annual household income in Maryland follows a normal distribution with a median of $75,847 and standard deviation of $33,800.
(a)
What is the probability that a household in Maryland has an annual income of $90,000 or more? (Round your answer to four decimal places.)
(b)
What is the probability that a household in Maryland has an annual income of $50,000 or less? (Round your answer to four decimal places.)
(c)
What is the probability that a household in Maryland has an annual income between $40,000 and $70,000? (Round your answer to four decimal places.)
(d)
What is the annual income (in $) of a household in the ninety-first percentile of annual household income in Maryland? (Round your answer to the nearest cent.)
Solutions
orchestra answered 2 years agoRelated Solutions
According to Money magazine, Maryland had the highest median annual household income of any state in...
According to Money magazine, Maryland had the highest median
annual household income of any state in 2018 at $75,847.† Assume
that annual household income in Maryland follows a normal
distribution with a median of $75,847 and standard deviation of
$33,800.
(a) What is the probability that a household in Maryland has an
annual income of $90,000 or more? (Round your answer to four
decimal places.)
(b) What is the probability that a household in Maryland has an
annual income of...
Household Income in Maryland: According to Money magazine, Maryland had the highest median annual household income...
Household Income in Maryland:
According to Money magazine, Maryland had the highest median
annual household income of an state in 2018 at $75,847 (Time.com
website). Assume that annual household income in Maryland follows a
normal distribution with a median of $75,847 and a standard
deviation of $33,800.
a. What is the probability that a household in Maryland has an
annual income of $100,000 or more?
b. What is the probability that a household in Maryland has an
annual income of...
A magazine reported the mean annual household income of its readers to be $150,000 with a...
A magazine reported the mean annual household income of its
readers to be $150,000 with a standard deviation of $30,000. A
recent sample of 80 households from among those subscribing to this
magazine found a mean of $139,155. What is the upper bound of a 95%
confidence interval for the mean income (correct to no decimal
places)?
Playbill magazine reported that the mean annual household income of its readers is $120,255. (Playbill, January...
Playbill magazine reported that the mean annual household income
of its readers is $120,255. (Playbill, January 2006). Assume this
estimate of the mean annual household income is based on a sample
of 80 households, and based on past studies, the population
standard deviation is known to be σ = $33,225.
a. Develop a 90% confidence interval estimate of the population
mean.
b. Develop a 95% confidence interval estimate of the population
mean.
c. Develop a 99% confidence interval estimate of...
Playbill magazine reported that the mean annual household income of its readers is $120,255. (Playbill, January...
Playbill magazine reported that the mean annual household income
of its readers is $120,255. (Playbill, January 2006). Assume this
estimate of the mean annual household income is based on a sample
of 80 households, and based on past studies, the population
standard deviation is known to be σ = $33,225.
a. Develop a 90% confidence interval estimate of the population
mean.
b. Develop a 95% confidence interval estimate of the population
mean.
c. Develop a 99% confidence interval estimate of...
In a recent year, Delaware had the highest per capita annual income with $51,803. If the...
In a recent year, Delaware had the highest per capita annual
income with $51,803. If the standard deviation is $4850, answer the
following questions: Assume that the sample is taken from a large
population what is the mean and standard deviation of the sampling
distribution of 16 individuals? Round calculations to four
places.
A. 51,803 and 4,850
B. 51,803 and 303.1250
C. 3,237.69 and 4,850
D. 51,.803 and 1,212.5
Minnesota had the highest turnout rate of any state for the 2012 presidential election.† Political analysts...
Minnesota had the highest turnout rate of any state for the 2012
presidential election.† Political analysts wonder if turnout in
rural Minnesota was higher than turnout in the urban areas of the
state. A sample shows that 663 of 884 registered voters from rural
Minnesota voted in the 2012 presidential election, while 396 out of
550 registered voters from urban Minnesota voted.
(a) Formulate the null and alternative hypotheses that can be
used to test whether registered voters in rural...
Minnesota had the highest turnout rate of any state for the 2012 presidential election.† Political analysts...
Minnesota had the highest turnout rate of any state for the 2012
presidential election.† Political analysts wonder if turnout in
rural Minnesota was higher than turnout in the urban areas of the
state. A sample shows that 630 of 840 registered voters from rural
Minnesota voted in the 2012 presidential election, while 378 out of
525 registered voters from urban Minnesota voted.
(a)
Formulate the null and alternative hypotheses that can be used
to test whether registered voters in rural...
Minnesota had the highest turnout rate of any state for the 2016 presidential election.† Political analysts...
Minnesota had the highest turnout rate of any state for the 2016
presidential election.† Political analysts wonder if turnout in
rural Minnesota was higher than turnout in the urban areas of the
state. A sample shows that 615 of 820 registered voters from rural
Minnesota voted in the 2016 presidential election, while 378 out of
525 registered voters from urban Minnesota voted.
(a) Formulate the null and alternative hypotheses that can be
used to test whether registered voters in rural...
Voter Turnout. Minnesota had the highest turnout rate of any state for the 2016 presidential election....
Voter Turnout. Minnesota had the highest
turnout rate of any state for the 2016 presidential election.
(United States Election Project website) Political analysts wonder
if turnout in rural Minnesota was higher than turnout in the urban
areas of the state. A sample shows that 663 of 884 registered
voters from rural Minnesota voted in the 2016 presidential
election, while 414 out of 575 registered voters from urban
Minnesota voted.
Formulate the null and alternative hypotheses that can be used
to...
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