Question

A credit score measures a person's creditworthiness. Assume the
average credit score for Americans is 709. Assume the scores are
normally distributed with a standard deviation of 53. a) Determine
the interval of credit scores that are one standard deviation
around the mean. b) Determine the interval of credit scores that
are two standard deviations around the mean. c) Determine the
interval of credit scores that are three standard deviations around
the mean. a)The interval of credit scores that are one standard
deviation around the mean ranges from nothing to nothing. (Type
integers or decimals. Use ascending order.) b)The interval of
credit scores that are two standard deviations around the mean
ranges from nothing to nothing. (Type integers or decimals. Use
ascending order.) c)The interval of credit scores that are three
standard deviations around the mean ranges from nothing to nothing.
(Type integers or decimals. Use ascending order.)

Answer #1

Given that

mean = 709

and standard deviation (sigma) = 53

(A) interval of credit scores that are one standard deviation around the mean is given as

(B) interval of credit scores that are two standard deviation around the mean is given as

(C) interval of credit scores that are three standard deviation around the mean is given as

Assume the cost of an extended 100,000 mile warranty for a
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and a standard deviation of $60. Complete parts.
a) Determine the interval of warranty costs
from various companies that are one standard deviation around the
mean. The interval of warranty costs that are one standard
deviation around the mean ranges from
(Type integers or decimals. Use ascending order.)
b) Determine the interval of warranty costs
from various companies...

Assume the cost of an extended 100,000 mile warranty for a
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through (d) below.
a) Determine the interval of warranty costs from various
companies that are one standard deviation around the mean.
The interval of warranty costs that are one standard deviation
around the mean ranges from _________ to ________.(Type integers
or decimals. Use ascending order.)
b) Determine the interval...

Assume the cost of an extended? 100,000 mile warranty for a
particular SUV follows the normal distribution with a mean of
?$1,320
and a standard deviation of ?$105
Complete parts ?(a) through
?(d) below.
?a) Determine the interval of warranty costs
from various companies that are one standard deviation around the
mean.
The interval of warranty costs that are one standard deviation
around the mean ranges from $ ___ to ___
?b) Determine the interval of warranty costs
from various...

A credit score is used by credit agencies (such as mortgage
companies and banks) to assess the creditworthiness of
individuals. Values range from 300 to 850, with a credit score
over 700 considered to be a quality credit risk. According to a
survey, the mean credit score is 708.2. A credit analyst wondered
whether high-income individuals (incomes in excess of $100,000
per year) had higher credit scores. He obtained a random sample of
34 high-income individuals and found the sample...

A credit score is used by credit agencies (such as mortgage
companies and banks) to assess the creditworthiness of
individuals. Values range from 300 to 850, with a credit score
over 700 considered to be a quality credit risk. According to a
survey, the mean credit score is 700.5. A credit analyst wondered
whether high-income individuals (incomes in excess of $100,000
per year) had higher credit scores. He obtained a random sample of
42 high-income individuals and found the sample...

A credit score is used by credit agencies (such as mortgage
companies and banks) to assess the creditworthiness of
individuals. Values range from 300 to 850, with a credit score
over 700 considered to be a quality credit risk. According to a
survey, the mean credit score is
709.1
.
A credit analyst wondered whether high-income individuals
(incomes in excess of $100,000 per year) had higher credit
scores. He obtained a random sample of
32
high-income individuals and found the...

A credit score is used by credit agencies (such as mortgage
companies and banks) to assess the creditworthiness of
individuals. Values range from 300 to 850, with a credit score
over 700 considered to be a quality credit risk. According to a
survey, the mean credit score is 709.7. A credit analyst wondered
whether high-income individuals (incomes in excess of $100,000
per year) had higher credit scores. He obtained a random sample of
45 high-income individuals and found the sample...

A credit score is used by credit agencies (such as mortgage
companies and banks) to assess the creditworthiness of
individuals. Values range from 300 to 850, with a credit score
over 700 considered to be a quality credit risk. According to
asurvey, the mean credit score is 701.2. A credit analyst wondered
whether high-income individuals (incomes in excess of $100,000
per year) had higher credit scores. He obtained a random sample of
43 high-income individuals and found the sample mean...

A credit score is used by credit agencies (such as mortgage
companies and banks) to assess the creditworthiness of
individuals. Values range from 300 to 850, with a credit score
over 700 considered to be a quality credit risk. According to a
survey, the mean credit score is 702.6. A credit analyst wondered
whether high-income individuals (incomes in excess of $100,000
per year) had higher credit scores. He obtained a random sample of
31 high-income individuals and found the sample...

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Choose the correct answer below and, if necessary, fill in the
answer boxes...

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