IOP2601
Assignment 3 Semester 1 2025
Detailed Solutions, References & Explanations
Unique number:
Due Date: 29 April 2025
QUESTION 1
1.1.
A population is an entire collection of elements or individuals, it is not always possible to
use the entire population, and therefore, we use only a subset of the population known
as a sample. It is easier and more convenient to use a sample. The sample calculation
is used for the measurement we are interested in as an estimate of the population value.
The assumption can be made that what is true for the sample is also true for the
population.
1.2.
Inferential statistics are used to make inferences about a population. The purpose being
to generalise research findings from a sample to a population
Terms of use
By making use of this document you agree to:
Use this document as a guide for learning, comparison and reference purpose,
Terms of use
Not to duplicate, reproduce and/or misrepresent the contents of this document as your own work,
By making use of this document you agree to:
Use this document
Fully accept the consequences
solely as a guide forshould you plagiarise
learning, reference,or and
misuse this document.
comparison purposes,
Ensure originality of your own work, and fully accept the consequences should you plagiarise or misuse this document.
Comply with all relevant standards, guidelines, regulations, and legislation governing academic and written work.
Disclaimer
Great care has been taken in the preparation of this document; however, the contents are provided "as is" without any express or
implied representations or warranties. The author accepts no responsibility or liability for any actions taken based on the
information contained within this document. This document is intended solely for comparison, research, and reference purposes.
Reproduction, resale, or transmission of any part of this document, in any form or by any means, is strictly prohibited.
, +27 67 171 1739
QUESTION 1
1.1.
A population is an entire collection of elements or individuals, it is not always
possible to use the entire population, and therefore, we use only a subset of the
population known as a sample. It is easier and more convenient to use a sample.
The sample calculation is used for the measurement we are interested in as an
estimate of the population value. The assumption can be made that what is true for
the sample is also true for the population.
1.2.
Inferential statistics are used to make inferences about a population. The purpose
being to generalise research findings from a sample to a population.
1.3. A _____ test is typically used to test for association between two
categorical variables.
X² Test (Chi-square test)
1.4. A _____ hypothesis is a negative statement about a possible difference
between the variables that you want to study.
Null hypothesis
1.5. Which of the following activities describes "sampling"?
Identifying and grouping a part of the whole population.
QUESTION 2
2.1.
Disclaimer
Great care has been taken in the preparation of this document; however, the contents are provided "as is"
without any express or implied representations or warranties. The author accepts no responsibility or
liability for any actions taken based on the information contained within this document. This document is
intended solely for comparison, research, and reference purposes. Reproduction, resale, or transmission
of any part of this document, in any form or by any means, is strictly prohibited.
Assignment 3 Semester 1 2025
Detailed Solutions, References & Explanations
Unique number:
Due Date: 29 April 2025
QUESTION 1
1.1.
A population is an entire collection of elements or individuals, it is not always possible to
use the entire population, and therefore, we use only a subset of the population known
as a sample. It is easier and more convenient to use a sample. The sample calculation
is used for the measurement we are interested in as an estimate of the population value.
The assumption can be made that what is true for the sample is also true for the
population.
1.2.
Inferential statistics are used to make inferences about a population. The purpose being
to generalise research findings from a sample to a population
Terms of use
By making use of this document you agree to:
Use this document as a guide for learning, comparison and reference purpose,
Terms of use
Not to duplicate, reproduce and/or misrepresent the contents of this document as your own work,
By making use of this document you agree to:
Use this document
Fully accept the consequences
solely as a guide forshould you plagiarise
learning, reference,or and
misuse this document.
comparison purposes,
Ensure originality of your own work, and fully accept the consequences should you plagiarise or misuse this document.
Comply with all relevant standards, guidelines, regulations, and legislation governing academic and written work.
Disclaimer
Great care has been taken in the preparation of this document; however, the contents are provided "as is" without any express or
implied representations or warranties. The author accepts no responsibility or liability for any actions taken based on the
information contained within this document. This document is intended solely for comparison, research, and reference purposes.
Reproduction, resale, or transmission of any part of this document, in any form or by any means, is strictly prohibited.
, +27 67 171 1739
QUESTION 1
1.1.
A population is an entire collection of elements or individuals, it is not always
possible to use the entire population, and therefore, we use only a subset of the
population known as a sample. It is easier and more convenient to use a sample.
The sample calculation is used for the measurement we are interested in as an
estimate of the population value. The assumption can be made that what is true for
the sample is also true for the population.
1.2.
Inferential statistics are used to make inferences about a population. The purpose
being to generalise research findings from a sample to a population.
1.3. A _____ test is typically used to test for association between two
categorical variables.
X² Test (Chi-square test)
1.4. A _____ hypothesis is a negative statement about a possible difference
between the variables that you want to study.
Null hypothesis
1.5. Which of the following activities describes "sampling"?
Identifying and grouping a part of the whole population.
QUESTION 2
2.1.
Disclaimer
Great care has been taken in the preparation of this document; however, the contents are provided "as is"
without any express or implied representations or warranties. The author accepts no responsibility or
liability for any actions taken based on the information contained within this document. This document is
intended solely for comparison, research, and reference purposes. Reproduction, resale, or transmission
of any part of this document, in any form or by any means, is strictly prohibited.
