What you should have already completed To answer this question you will need to have completed Week 3 , Topic 5 . Before answering this question read the following scenario. Question 3 scenario Hannah Adams was looking forward to moving into her new first floor flat on an unfinished but new estate. She had yet to measure up for curtains but as the streetlights were not working yet decided that a thin sheet over the window would block out the light from the room. For the first few days she slept soundly and woke up refreshed. Unfortunately, on the fourth day the streetlight immediately outside her bedroom was turned on and for the next few days found it very difficult to sleep. Her sleeping data are provided in the Excel spreadsheet 'Hannah's sleep data' under the Resources tab of the SK299 22J website. Answering this question You will be awarded up to 10 marks for Question 3 as follows: a. Using the data provided produce a computer generated x-y scatter plot of (i) sleep time and (ii) 'total duration' in bed against date (use the option that connects the data points by line and plot the sleep time and 'total duration' on the same axes). Although the data includes times when Hannah was awake, REM, light sleep, and deep sleep there is no need to plot these variables. ( 4 marks) b. Using your knowledge of SK299 and in no more than 200 words, describe the physiological mechanisms and processes that could possibly contribute to Hannah's sleep results. ( 6 marks)