2. Canada's annual greenhouse gas (GHG) emission is known to follow a normal distribution of (694, 45) megatons of CO2 equivalent. But Canada is committed to reach an annual GHG emission of 511 megatons CO2 eq by 2030. a) If Canada makes no changes to its existing emitting practices and pattern, what are the chances that they will be able to reach or do better than the target of 511? Show your calculations and state if you think they can succeed. (4 marks) b) If Canada wants to ensure a 95% chance of meeting or doing better than the target, what should the mean of the new emission pattern/distribution be, if variability remains the (4 marks) same? c) To investigate if there has been any improvement in annual GHG emission in 2020, data from 20 locations in Canada has been collected. Considering all the given information, is this sample large enough to be 95% sure that the estimation is only off by 15 Mt? (3 marks)