MAS183_Ass2_2022.pdf X MU Domestic / International students X @ Unit: MAS183 Statistical Data And X Homework Help - Q&A from Onl x + X moodleprod.murdoch.edu.au/pluginfile.php/3057273/mod_resource/content/5/MAS183_Ass2_2022.pdf G N Update M Gmail YouTube Maps Cite This For Me: H... W Python Tutorial HIS Information Securit... (1) How To Make T... Remove Backgroundlose e Symmetric Encrypti.. History 39 (56) WhatsApp E MAS183_Ass2_2022.pdf 1 / 2 - 100% + MAS183 Statistical Data Analysis Semester 2, 2022 ASSIGNMENT 2 Due 11pm Thursday, September 15 Total Marks: 40 This assignment covers material in chapters 5-9 of the Unit Notes. R is not required in this as- signment, but may be used if you wish. If software is used, attach relevant output to support your answers. No data files are required. 1. [10 marks] An automated blood-pressure machine classifies people as having either high blood pressure (hypertension) or normal (healthy) blood pressure. In clinical trials on adults the ma- chine classified 88% of hypertensives as having hypertension, and classified 22% of healthy peo- ple, i.e. without hypertension, as having hypertension. Health officials are considering using the machine for screening an adult population in which 18% of persons have hypertension. (a) Structure the above information using a contingency table. Take care to complete all marginal totals as well as the body of the table. [4] (b) Estimate the proportion of people that the machine classifies as hypertensive that would actually have hypertension? [2] (c) Consider those who would be classified by the machine as having normal blood pressure. If we chose one of these people at random, what is the chance that the selected person would actually be hypertensive? [2] (d) What would the machine do better in this population: show who has hypertension, or show who doesn't have it? Justify your answer. [2] DE MAS183_Ass2_2022.pdf Show all X W ENG 8:55 PM US 14/09/2022 D