Exam (elaborations)
STA1506 ASSIGNMENT 1 ANSWERS 2024
- Course
- STA1506 (STA1506)
- Institution
- University Of South Africa (Unisa)
STA1506 ASSIGNMENT 1 ANSWERS 2024
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Basic Statistical Computing STA1506 2024 SEMESTER1ASSIGNMENT 1 QUESTIONS
, Basic Statistical Computing STA1506 2024 SEMESTER1
QUESTION 1
(a) Define the term statistics and state five stages of statistical inference. (7)
(b) Define the term data and state four measurement scales of data. (6)
(c) Define the term data source, state, and define its classifications. (14)
(a) Statistics is the practice of collecting, analyzing, interpreting, and presenting
numerical data. The five stages of statistical inference are:
1. Formulation of the hypothesis
2. Collection of data
3. Analysis of data
4. Drawing conclusions
5. Reporting and interpretation of results
(b) Data refers to information that is collected and analyzed for the purpose of making
decisions. The four measurement scales of data are:
1. Nominal scale
2. Ordinal scale
3. Interval scale
4. Ratio scale
(c) A data source is a place or method from which data is collected. It can be classified
into primary and secondary sources.
- Primary sources involve the collection of original data through direct observation,
surveys, experiments, etc.
- Secondary sources involve the use of existing data that has been collected by others,
such as government agencies, research institutions, or published material.
(a) Statistics refers to the science of collecting, organizing, presenting,
analyzing, and interpreting numerical data. The five stages of statistical
inference are:
1. Formulation of the problem or hypothesis
2. Collection of data
3. Analysis of data
4. Drawing conclusions
5. Reporting results
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