Thursday, December 12, 2013

Mayfield high investigation

A population may contain separate aggroups or strata. individually(prenominal) group acquires to be passably represented in the sample. The telephone figure from each group is proportional to the group size. The alternative is thence made at random from each group, this is called stratified sampling, and I need to use this to make sure my results represents each group fairly, the equation I need to use is: No. Of pupils in specific data X Sample No. score No. Of pupils Stratified Sampling Yr 10 boys= 106/ 370 X 60= 17 Yr 10 girls= 99/370 X 60= 15 Yr 11 boys= 84/370 X =14 Yr 11 girls= 86/370 X 14 Boys= 17+14=31 Girls= 15+14=29 Now from this I go away randomly rob my sample of 60 pupils because it is big bountiful to represent the unharmed school, I will do this employ my calculator by pressing 370Ran# this will give me a random number in decimals I will then round it glowering. If a number comes up more than one time I will ignore it. I will right off keep goi ng until I lay down a salutary set of data. Collecting The Data As I have already mentioned in my introduction, I will use a sample of 60 students. Upon victimization the random sampling sample. I realised that I would need 31 boys and 29 girls to fairly represent each group. Boys          Height         Weight 1.9         70 1.6         50 1.6         47 1.68         59 1.8         72 1.77         59 1.72         62 1.75         45 1.75         57 1.57         49 1.73         57 1.54         54 1.63         56 1.61         56 1.65         47 1.65         55 1.6         51 1.67         66 1.72         51 1.65         42 1.69         5 1.75         60 1.7    Â Â Â Â Â Â 72 2         60 1.!
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86         80 1.51         38 1.57         54 1.61         45 1.5         45 1.52         44 1.62         51 Here argon all the boys to be include in... Youve obviously put almost time and drift into documenting the results of your investigation. Your idea could have benefited from a kick the bucket statement at the very beginning as to the plan of your investigation. You need to profit the title of your paper. It would be advisable t o remove references to pages containing diagrams (e.g., scatter diagram, histogram and case plot) which have not been provided. Commendable effort! This is now the threesome time this information has been provided, although I billhook the slight alteration in your title. If you want to get a full essay, invest it on our website: BestEssayCheap.com

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