(b) Rasool wants to rent an apartment in Cheras, Selangor next year. He surveyed a random sample of 60 apartments advertised on Senang.MY website. The monthly rent of the apartments follows a normal distribution with a mean of RM1000 and a standard deviation of RM200. (i) Construct a 95% confidence interval for the mean monthly rent of all (4 marks) apartments advertised on Senang.MY website. (ii) (iii) Determine to what population of apartments can Rasool appropriately infer based on your answer in Q5. (b) (i). (2 marks) Determine the number of apartments in Cheras, Selangor that would be needed to estimate the population mean with an error within RM50 at a 90% confidence level. (4 marks) [Total: 25 marks]