Question

It is known that the 85% of graduates (p = .85) of Foley’s School of Motel Management are placed in a job within 6 months of graduation. If a class has 10 graduates, what is the probability that at least 9 will be placed within 6 months?

Answer #1

In a report on high school graduation, it was stated that 85% of
high school students graduate. Suppose 3 high school students are
randomly selected from different schools. a.)What is the
probability that all graduate? b.) What is the probability that
exactly one of the three graduates? c.) What is the probability
that none graduate?
Please provide detailed explanation and what method of
probability is used?

A study conducted at a certain college shows that 30% of the
school's graduates find a job in their chosen field within a year
after graduation. Find the probability that among 10 randomly
selected graduates, at least one finds a job in his or her chosen
field within a year of graduating. Assume that the sample is taken
with replacement. Express your answer as a percentage rounded to
the nearest hundredth.

A study conducted at a certain college shows that 58% of the
school's graduates find a job in their chosen field within a year
after graduation. Find the probability that among 7 randomly
selected graduates, at least one finds a job in his or her chosen
field within a year of graduating.

A dean of a business
school wants to know if the proportion of graduates who use
statistical inference within the first year after graduation is
greater than 0.6. Suppose the test statistic was found to be 1.01.
At the a = 0.10 level of significance, what would be the
conclusion?
Answer using
only the information presented in this question; do not
refer to your answers to any other questions that might have a
similar set-up.
Read
carefully, and select all...

Juana, who has just received a postgraduate degree, feels lucky
to have found a permanent job in this tough economy. She faced
these statistics: Only 2/3 of the graduates of "top flight" schools
and 1/3 of the graduates of lower ranked schools found permanent
jobs within nine months of graduation. The top flight schools
comprise 1/4 of the total number. What is the probability that
Juana attended a top flight school?

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 187000 dollars. Assume
the standard deviation is 38000 dollars. Suppose you take a simple
random sample of 81 graduates.
Find the probability that a single randomly selected policy has a
mean value between 180244.4 and 190800 dollars.
P(180244.4 < X < 190800) =
Find the probability that a random sample...

An elementary school teacher learned that 40% of school children
have at least 3 cavities. The teacher has 30 students in his class.
How many students would he expect in his class to have at least 3
cavities? What is the standard deviation? Using the appropriate
approximation, determine P(x>20); that is, the probability that
more than 20 students in his class will have 3 cavities.

We are interested in estimating the proportion of graduates at a
mid-sized university who found a job within one year of completing
their undergraduate degree. Suppose we conduct a survey and find
out that 347 of the 400 randomly sampled graduates found jobs. The
graduating class under consideration included over 4500
students.
(a) Consider the population parameter of interest. What is the
value of the point estimate of this parameter? 4500
(b) Check if the conditions for constructing a confidence...

A school district has four schools, six class in from each
school were randomly selected and the number of students in the
class were recorded. Test the claim that at least one school has a
different class size at a 0.10 level of significance.
School
A
School
B
School
C
School
D
37
47
31
25
33
45
38
40
37
46
33
35
42
31
34
37
26
36
30
30
31
31
36
37
The hypotheses for this...

Let's suppose that student A applied to two law schools (“X” and
“Y “) in 2014. (So the program starts in 2015) If she graduates
from the law school “X”, she gets payed $10000 /month but there is
a 50 % chance that she loses her job within a year. If she
graduates from the law school “Y”, she get payed $ 8000 / month but
there is a 20 % chance that she loses her job within a year....

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