IOP2601 Assignment 3 (COMPLETE ANSWERS) Semester 2 2025 – DUE 22 September 2025; 100% correct solutions and explanations.

IOP2601 Assignment 3 (COMPLETE ANSWERS) Semester 2 2025 – DUE 22 September 2025; 100% correct solutions and explanations. MODULE IOP2601 SEMESTER 2 2025 ASSESSMENT 3 TOTAL: 60 marks LESSONS: 11-14 Instructions: - Preferably, type your answers; however, neatly handwritten submissions are acceptable. - Only use formulas provided in the study guide. - Round off the final answer to two decimals. (Values read from tables must be given unaltered). - No marks will be awarded for work suspected of plagiarism. It is strongly recommended that you complete your own work without relying on AI tools or peers. - Always reference your work using the APA style where relevant to avoid losing marks. ______________________________________________________________________ APA referencing style examples (in-text): - Mvana (2025) argues that teacher retention is significantly influenced by psychological capital and organisational practices. OR - Teacher retention remains a critical issue in African education contexts (Mvana, 2025). OR - According to Mvana (2025), "psychosocial factors are crucial in reducing turnover rates in education" (p. 83). QUESTION 1 [8] State whether the following statements are true or false. For those answered as false, provide the correct explanation. 1.1 A Type II error is made by rejecting the null hypothesis when it is in fact true. 1.2 ANOVA allows testing for differences across more than two group means and can evaluate the impact of multiple independent variables. 1.3 The acronym ANOVA stands for analysis of variables. 1.4 A Type I error happens when the null hypothesis is not rejected despite it being false. 1.5 The Chi-Square test is typically used to assess the association between two categorical variables. QUESTION 2 [10] Answer the questions below. Include a reference – APA style. 2.1 Provide a detailed explanation distinguishing the null hypothesis from the alternative hypothesis, and include a relevant example to illustrate these concepts. (4) 2.2 State whether the following