Exam (elaborations)
IOP2601 Assignment 3 Semester 1 2024 - DUE 2 May 2024
- Course
- IOP2601 (IOP2601)
- Institution
- University Of South Africa
IOP2601 Assignment 3 Semester 1 2024 - DUE 2 May 2024 QUESTIONS WITH ANSWERS
[Show more]
Content preview
lOMoAR cPSD| 24668432IOP2601
ASSIGNMENT 3
SEMESTER 1 2024 -
DUE 2 MAY 2024
QUESTIONS WITH COMPLETE ANSWERS
[School]
[Course title]
, lOMoAR cPSD| 24668432
1
IOP2601/ASSIGNMENT 03/SEMESTER 1/2024
IOP2601 Assignment 3 Semester 1 2024 - DUE 2 May
2024
ASSESSMENT 03
Closing date: Tuesday, 2 May 2024 @ 23:00
Total: 50 marks
Study material: Lessons 11 to 14
Use computational formulas, where applicable, and round off the final answer to two decimal
places. (Values read from tables must be given unaltered.)
QUESTION 1 [12]
1.1 Indicate whether the following statements are True or False. Give reasons for your answer.
a) For this module, the level of significance is always given as 0,005. (2)
b) A Type I error is made by rejecting the null hypothesis when it is in fact true. (2)
c) If you get a negative value for the F-test, this means the test statistic falls inside the rejection
area. (2)
a) False
The level of significance (alpha), denoted by α, is not always set at 0.005. It can vary depending on the
specific hypothesis test being conducted and the desired balance between the two main types of errors
(Type I and Type II). Common choices for alpha include 0.05, 0.01, and 0.001, but researchers can
choose other values based on their field and research question.
b) True
A Type I error occurs when you reject the null hypothesis (H₀) even though it's actually true. In simpler
terms, you mistakenly conclude that there's a significant difference between groups or variables when
there really isn't. Setting a lower alpha level (like 0.005) reduces the chance of a Type I error but
increases the chance of a Type II error (failing to reject a false null hypothesis).
c) False
The F-test statistic is used to compare variances between groups. A negative value for the F-statistic
wouldn't make sense in this context. A positive value indicates that the variance between groups is
greater than the variance within groups, which might lead to rejecting the null hypothesis (depending on
For exam pack with questions and answers, quality notes, assignments and
exam help:
email: musyokah11@gmail.com
WhatsApp: +254792947610
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 reinah44. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R46,51. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67096 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy summaries for 14 years now