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Boys are taller than girls, I am going to investigate this by looking at a stratified sample of boys and girls separately across years seven and eleven, and forming a cumulative frequency graph to compare the heights between them.
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| Submitted: Wed Apr 07 2004
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Data Handling Coursework Mayfield Highschool Introduction The coursework I'm about to do is based on the height of pupils at Mayfield Highschool. I'm going to explore two hypotheses with secondary source data. My first hypothesis is that; boys are taller then girls, I am going to investigate this by looking at a stratified sample of boys and girls separately across years seven and eleven, and forming a cumulative frequency graph to compare the heights between them. My sample size is going to be 100. But before creating my sample I am going to remove any bias pieces of data that sets the rest of the population askew. I am then going to work out each strata size. The strata size is represented by proportion. Example Sample size 30 Year Number of pupils Sample size Year 11 207 207/346x30=17.9 (18 pupils) Year 12 81 81/346x30=7.02 (7 pupils) Year 13 58 58/346x30=5.03 (5 pupils) Total 346 pupils 30 pupils Once I have created my samples I am going to use a random...
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