Practical Example of Spearman

Practical Example of Spearman - miles) r IB Geography...

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1. Practical Example of Spearman's Rank Correlation Question: Use the Spearman's Rank Correlation to establish whether there is any relationship between the distance away from school students live and the IB Geography grades they attain. Red type indicates what you have been given. Black type indicates the working done. 1. Null Hypothesis : There is no relationship between the two sets of data. 2. Distance From School (in
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Unformatted text preview: miles) r IB Geography Grades Attained r d d^2 3 2 4 4 2 4 7 1 4 4 3 9 2 3 7 1 2 4 2 3 6 2 1 1 1 5 5 3 2 4 Sigma d 2 = 22 3. Rs = 1-(6 Sigma d 2 / n 3-n). o Sigma d 2 = 22 therefore 6 Sigma d 2 = 132 o n = 5 therefore n 3-n = 120 4. Rs = 1-(132/120) 5. Rs = 1- 0.91 6. Rs = 0.09 7. There is a weak positive correlation between the two sets of data. The null hypothesis is rejected....
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This note was uploaded on 11/10/2011 for the course GEA GEA2000 taught by Professor Wong,faith during the Fall '09 term at Broward College.

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