Question

A survey reported that the mean starting salary for college
graduates after a three-year program was $34,180.Assume that the
distribution of starting salaries follows the normal distribution
with a standard deviation of $3950. What percentage of the
graduates have starting salaries: **(Round z-score
computation to 2 decimal places and the final answers to 4 decimal
places.)**

**a.** Between $31,600 and $38,000?

Probability

**b.** More than $44,100?

Probability

**c.** Between $38,000 and $44,100?

Probability

Answer #1

A survey reported that the mean starting salary for college
graduates after a three-year program was $34,170.Assume that the
distribution of starting salaries follows the normal distribution
with a standard deviation of $3190. What percentage of the
graduates have starting salaries: (Round z-score
computation to 2 decimal places and the final answers to 4 decimal
places.)
a. Between $31,800 and $38,200?
Probability
b. More than $42,700?
Probability
c. Between $38,200 and $42,700?
Probability

According to a National Association of Colleges and Employers,
the average starting salary for new college graduates in health
sciences is $51,541. The average starting salary for new college
graduates in business is $53,901.† Assume that starting salaries
are normally distributed and that the standard deviation for
starting salaries for new college graduates in health sciences is
$13,000. Assume that the standard deviation for starting salaries
for new college graduates in business is $17,000
a) What is the probability that...

2. A random sample of 12 recent college graduates reported an
average starting salary of $54,000 with a standard deviation of
$6,000.
To construct a 95% confidence interval for the mean starting
salary of college graduates, what will be the margin of error?
Round to whole dollars.

Starting Salary Problem
In 2013, the mean starting salary for college graduates who major
in Social Work was $45,000. An analyst for a job searching company
claims that the mean starting salary has since decreased. In a
random sample of 38 job posting for social workers, the mean
starting salary was $43,200 with a standard deviation of $9,340.
Test the claim using a significance level of 0.10.
Determine the p-value.
Round your answer to 4 decimal places.

Business Weekly conducted a survey of graduates from 30 top MBA
programs. On the basis of the survey, assume the mean annual salary
for graduates 10 years after graduation is $146,000. Assume the
standard deviation is $38,000. Suppose you take a simple random
sample of 46 graduates. Round all answers to four decimal
places if necessary.
A. What is the distribution of X? X ~
N( ,
)
B. What is the distribution of ¯x? ¯x ~
N( , )...

Suppose a 95% confidence interval for the mean salary of college
graduates in a town in Mississippi is given by [$36,815, $43,185].
The population standard deviation used for the analysis is known to
be $13,000. [You may find it useful to reference the z table.] a.
What is the point estimate of the mean salary for all college
graduates in this town? b. Determine the sample size used for the
analysis. (Round "z" value to 3 decimal places and final...

Monthly Salaries
A sample of 100 graduates who completed a 6-month security guard
training program reported the following monthly starting salaries
(in security guard related employment).
Monthly Salary
Number of Graduates
$1,001-$1,400
1
$1,401-$1,800
11
$1,801-$2,200
14
$2,201-$2,600
38
$2,601-$3,000
36
Total
100
Compute the (approximate) mean monthly starting salary. [4
marks]
Compute the (approximate) standard deviation of the monthly
starting salaries. [6 marks]
Hand-sketch a relative frequency histogram, using a percentage
scale on the Y-axis. Do not be...

Business Weekly conducted a survey of graduates from 30 top MBA
programs. On the basis of the survey, assume the mean annual salary
for graduates 10 years after graduation is $165,000. Assume the
standard deviation is $37,000. Suppose you take a simple random
sample of 16 graduates. Round all answers to four decimal places if
necessary.
What is the distribution of X ? X ~ N( , )
What is the distribution of ¯ x ? ¯ x ~ N(...

usiness Weekly conducted a survey of graduates from 30 top MBA
programs. On the basis of the survey, assume the mean annual salary
for graduates 10 years after graduation is $157,000. Assume the
standard deviation is $36,000. Suppose you take a simple random
sample of 16 graduates. Round all answers to four decimal places if
necessary.
What is the distribution of X? X ~ N( , )
What is the distribution of¯x?¯x ~ N( , )
For part b), is...

Business Weekly conducted a survey of graduates from 30 top MBA
programs. On the basis of the survey, assume the mean annual salary
for graduates 10 years after graduation is $152,000. Assume the
standard deviation is $42,000. Suppose you take a simple random
sample of 20 graduates. Round all answers to four decimal places if
necessary.
What is the distribution of X ? X ~ N( , )
What is the distribution of ¯¯¯ X ? ¯¯¯ X ~ N(...

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