Question
In: Statistics and Probability
According to national data, about 15% of American college students earn a graduate degree. Using this...
According to national data, about 15% of American college students earn a graduate degree. Using this estimate, what is the probability that exactly 27 undergraduates in a random sample of 200 students will earn a college degree? Hint: Use the normal approximation to the binomial distribution, where p = 0.15 and q = 0.85. (Round your answer to four decimal places.) Incorrect: Your answer is incorrect.
Solutions
orchestra answered 2 years agoRelated Solutions
According to national data, about 15% of American college students earn a graduate degree. Using this...
According to national data, about 15% of American college
students earn a graduate degree. Using this estimate, what is the
probability that exactly 25 undergraduates in a random sample of
200 students will earn a college degree? Hint: Use the
normal approximation to the binomial distribution, where
p = 0.15
and
q = 0.85.
The American Council of Education reported that 47% of college freshmen earn a degree and graduate...
The American Council of Education reported that 47% of college
freshmen earn a degree and graduate within 5 years.
Assume that
graduation records show women make up 50% of the students who
graduated within 5 years,
but only
45% of the students who did not graduate within 5 years.
The
students who had not graduated withing 5 years either dropped out
or were still working on their degrees.
Students earn a degree and graduate within 5 years
47%
Women student...
According to past data, the 15% of all college students in California are business majors. Suppose...
According to past data, the 15% of all college students in
California are business majors. Suppose a random sample of 200
California college students is taken.
a) What information about this sample allows us to use the
normal distribution for our sampling distribution?
b) Calculate the standard error. Round to two places for
ease.
c) What is the probability that the sample of 200 gives a sample
proportion of 18% or higher? Show your calculator function and
entries. Round to...
According to the 2016 CCSSE data from about 430,000 community college students nationwide, about 13.5% of...
According to the 2016 CCSSE data from about 430,000 community
college students nationwide, about 13.5% of students
reported that they “often” or “very often” come to class without
completing readings or assignments.
Are the results similar at community colleges in California?
Specifically, let’s test the claim that California students are
different. Use a 5% level of significance.
Suppose that the CCSSE is given in California to a random sample
of 500 students and 10.5% report that they “often” or “very...
According to the National lnstitute on Alcohol Abuse and Alcoholism, 41% of college students nationwide engage...
According to the National lnstitute on Alcohol Abuse and
Alcoholism, 41% of college students nationwide engage in "binge
drinking" behavior, having 5 or more drinks in one occasion during
the past two weeks. A college president wonders if the proportion
of students enrolled at her college that binge drink is actually
lower than the national proportion.
ln a commissioned study, 348 students are selected randomly
from a list of all students enrolled at the college. Of these, 132
admitted to...
According to the National Institute on Alcohol Abuse and Alcoholism, 19% of college students aged 18...
According to the National Institute on Alcohol Abuse and
Alcoholism, 19% of college students aged 18 to 24 abuse
alcohol.1
Describe the population proportion of interest in words. What
value are we assuming for this proportion?
What is the sampling distribution for the sample proportion of
college students aged 18 to 24 that abuse alcohol from a random
sample of size 100 from this population? Make sure to explain why
the appropriate conditions are met or not met as part...
Career Training According to the study The American Freshman: National Norms 2015, 76.1% of college freshmen...
Career Training According to the study The American Freshman:
National Norms 2015, 76.1% of college freshmen said that “to get
training for a specific career” was a very important reason for
their going to college. Consider a group of seven freshman selected
at random. In Exercises 23–26, find the probabilities that the
number of people in the group who felt that the reason was very
important is as stated. 23. All seven 24. Exactly three of the
seven 25. At...
Using the data on 4137 college students, the following equation was estimated Using the data on...
Using the data on 4137 college students, the following equation
was estimated
Using the data on 4137 college students, the following equation
was estimated
by OLS
colgpai =β0 +β1hsperci +ui, i=1,2,...,4137
where colgpa is measured on a four-point scale and hsperc is the
percentile in the high school graduating class (defined so that,
for example, hsperc = 5 means the top 5 percent of the class).
Coefficients:
Estimate Std. Error t value Pr(>|t|) (Intercept) 2.9803872
0.0141800 210.2 <2e-16 *** hsperc...
****Using excel** A graduate student believed that, on the average, college students spend more time on...
****Using excel**
A graduate student believed that, on the average, college
students spend more time on the Internet compared to the rest of
the population. She conducted a study to determine if her
hypothesis was correct. The student randomly surveyed 25 students
and found that the average amount of time spent on the Internet was
12.75 hours per week with a SD = 3 hours. The last census found
that, on the average, people spent 11 hour per week on...
You are a recent college graduate with a bachelor’s degree in accounting and have little to...
You are a recent college graduate with a bachelor’s degree in
accounting and have little to no experience and applying for your
first job. Write a cover letter to apply for this job posting.
be sure to distinguish your application with a persuasive cover
letter or cover message. A cover letter/message has three purposes:
(a) introduce your résumé, (b) highlight your strengths in terms of
benefits to the employer, and (c) help you gain an interview.
Job Posting:
Entry Level/Recent...
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