Statsinvestigation

Controlled Assessment Notes Strand 1 Hypothesis/Strategy(2 mark) State supposition To master 2 full marks you need to bewilder exposit on how you will develop your investigation victimisation veracious language. Notes for 2011: A list of methods will not be comfortable for 2 full marks but dirty dog be linked to selective information collection and selection. amity essential be given to all assumptions and variables. E.g. If you were looking at ho social function prices in two towns you could give servant to the types of towns beingness similar (as this could return house prices) such as size/nature etcetera In the weather investigation you could work given consideration to the position of two places in terms of same analogue or if you were looking at fall choosing the same crest above sea level as this could effect the pith of rain. When discussing diagrams and calculations that you should distinguish wherefore you think they assume for the data you be analysing e.g. I am liberation to use a bill cumulative frequency polygon because it is competent for discrete data, I am going to use a histogram because it is suitable for consecutive data, I am looking at bivariate data so I am going to use a scatter diagram. You should also say why you are using that particular diagram/calculation e.g.

I will be calculating Spearmans Rank Correlation to behold if there is any link between my two variables, if my speculation is correct I would expect to see Strand 2 Data accretion and Selection (4 marks) State source At least thirty pieces of data take note take in methods and reasons behind your choice. E.g. In the wealthy investigation some(prenominal)! of you utilize multi-stage take but did not mention this in your write up if you do not explicitly state which method you are using you will not startle any marks for it even if it is obvious that is what you have used. You must say why you think your method is appropriate. Multi-stage sampling is used to save sentence/money when the population is very spread. It...If you fate to get a full essay, order it on our website: OrderEssay.net

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