Statistic 2011

Monday 25 July 2011

Data Analysis

Variables:
  • Height of a person (Scale Data)
  • Length of elbow to tip of hand of a person (Scale Data)
Statistical Method
Since both the variables are scale data, we have decided to use the Pearson's r method to compute our results.


Pearson's r
Allows us to know the strength and direction of linear association between two scale variables.


Scatter Plot
We have generated a scatter plot with best fit line based on the data with had collected using SPSS.






















We have also generated the Peason's r coefficient using SPSS.

There is a positive, very strong, and significant asociation between a person's height and 4 times the length of elbow to tip of hand. (r=0.810, p<0.05, N=31).



Limitations
  • Sampling method is not representative
  • Low response rate --> Some respondents were unwilling to have their height taken

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