Other
BES 220 Assignment 4 2020
- Course
- BES 220 (BES220)
- Institution
- University Of Pretoria (UP)
BES assignment 4 with answers
[Show more]
Seller
Follow
Content preview
09/10/2020 Assignment 4 - Inference for categorical variablesAssignment 4 - Inference for
categorical variables
Click on a question number to see how your answers were marked and, where
available, full solutions.
Question Number Score
Question 1 14 / 28
Question 2 5 / 11
Question 3 4 / 12
Question 4 13 / 18
Total 36 / 69 (52%)
Performance Summary
Exam Name: Assignment 4 - Inference for categorical variables
Session ID: 02578490643
Student's Name: K (Katarina) Djordjevic (011cdd57506642ec949f60ac53aa58da)
Exam Start: Fri Oct 09 2020 20:47:30
Exam Stop: Fri Oct 09 2020 22:14:21
Time Spent: 1:26:50
Question 1
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 on current graduate students, and find out that 113 of 225 randomly sampled
graduate students found jobs. The graduate class under consideration included over
18420 students. Answer the following questions, and where applicable and unless otherwise
stated, round and give your answers to two decimal places.
https://numbas.up.ac.za/run_attempt/84821?resource_link_id=_2035663_1 1/15
, 09/10/2020 Assignment 4 - Inference for categorical variables
a)
What is the value of the point estimate of this parameter?
Expected answer: 0.50
0.50
Your answer is correct. You were awarded 2 marks.
You scored 2 marks for this part.
Score: 2/2
b)
What is the population parameter of interest?
The number of students to use in the sample.
The proportion of students sampled who found a job.
All students at the university.
The number of students sampled who found a job.
The true proportion of graduate students at the university who found a job.
The true number of graduate students at the university who found a job.
You chose an incorrect answer.
You scored 0 marks for this part.
Score: 0/1
c)
Which of the following conditions, or part of a condition, for constructing a confidence
interval based on these data are met? Select all (4) correct options, but note that
incorrect options selected are negatively marked.
More than 10 graduate students were included in the sample.
L th 10% f d t t d
https://numbas.up.ac.za/run_attempt/84821?resource_link_id=_2035663_1 t did t fi d j b 2/15
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller katdjordjevic143. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R50,00. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
62890 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy summaries for 14 years now