IOP2601 Assignment 3 Semester 1 ANSWERS 2026 - Due 20 April 2026

IOP2601 Assignment 3 Semester 1 ANSWERS 2026 - Due 20 April 2026 - Values read from statistical tables must be given unaltered. - Using AI tools to generate answers is prohibited and will result in penalties. However, you can disclose how you used AI to check your work. If there were any differences between your calculations and the AI's results, you must explain those too. - Show all workings/calculations clearly, and use only formulas provided in this module. - Although we may accept handwritten work, we encourage students to submit typed responses. - Remember to convert your document into Pdf before submission. - Where applicable, apply APA referencing style. QUESTION 1 [12] 1.1 Indicate whether the following statements are True or False. Motivate your answer. a) For this module, the level of significance is always given as 0,001. (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) 1.2 State whether the following alternative hypothesis are nondirectional or directional. Justify your answer. (6) a) A notable difference exists in the attitudes of students registered for semester 1 compared to those registered for semester 2 at UNISA. b) Consistent interaction with course content is associated with improved academic achievement. c) IOP2601 students who engage with lecturer feedback tend to achieve higher academic performance than those who do not review the feedback. - Values read from statistical tables must be given unaltered. - Using AI tools to generate answers is prohibited and will result in penalties. However, you can disclose how you used AI to check your work. If there were any differences between your calculations and the AI's results, you must explain those too. - Show all workings/calculations clearly, and use only formulas provided in this module. - Although we may accept handwritten work, we encourage students to submit typed responses. - Remember to convert your document into Pdf before submission. - Where applicable, apply APA referencing style. QUESTION 1 [12] 1.1 Indicate whether the following statements are True or False. Motivate your answer. a) For this module, the level of significance is always given as 0,001. (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) 1.2 State whether the following alternative hypothesis are nondirectional or directional. Justify your answer. (6) a) A notable difference exists in the attitudes of students registered for semester 1 compared to those registered for semester 2 at UNISA. b) Consistent interaction with course content is associated with improved academic achievement. c) IOP2601 students who engage with lecturer feedback tend to achieve higher academic performance than those who do not review the feedback.