Hypothesis testing is structured as a four-step process in the prescribed reading (Essentials of statistics for the behavioural science). Briefly explain each step. Include relevant examples to illustrate the key ideas or steps.

(10 marks)

2. What is the most common correlation coefficient used in research?

(2 marks)

A researcher wants to investigate the relationship between thenumber of hours spent studyingand thefinal exam marksamong third-year university students. What statistical test should the researcher use and why?

(2 marks)

A company wants to investigate whether there is a significant difference inwork satisfaction(measured on a scale from 0-50) betweennight shift and day shift workers? What statistical test should the company use and why?

(2 marks)

In an attempt to decrease theirdaily cigarette consumptiona group of friends (n=6) enrol in a 4-week hypnotherapy programme. What test could be used to assess whether there was a significant difference in daily cigarette consumption before and after the 4-week hypnotherapy programme and why?

(2 marks)

A student proposes the following hypothesis: There is a significant associationbetween level of education(matric, undergraduate/diploma, honours, masters, PhD) andemployment (Yes/No). What test should they use to answer the hypothesis and why?

(2 marks)

An owner of a t-shirt shop wants to compare theproportion of t-shirts of each size (small, medium, large)that are sold to the proportion that wasordered (based on last week's sales figures/expected).The owner counts the number of t-shirts of each size that are sold in a week. What statistical test should the owner use and why?

(2 marks)

As part of this module, you were introduced to calculating many of the statistical tests both manually and using software packages. Identify one software package which students/researchers can use to conduct their analysis and discuss some of the advantages and disadvantages.

(8 marks)

You have now covered the entirety of this module and should have a deeper understanding of statistics. Discuss what role you think statistics can play in addressing some of the social issues currently experienced in South Africa (you may draw on relevant examples/literature to support your answer).

(10 marks)