"The taller the person, the heavier they should be" - In order to investigate this, I will collect data from the Mayfield high information spreadsheet.

Plan

Hypothesis – “The taller the person, the heavier they should be”

In order to investigate this, I will collect data from the Mayfield high information spreadsheet. The data that will be collected will be from all of the years (years 7 through to 11). Some of the data might prove unreliable, as this is secondary research.

So far, it is clear to see that the taller the person involved, that the heavier they would be. In order to do this, I will need to prove this by showing that there us a trend in all of the years, from years 7 to 11.

There will also be another point to overcome, that as a person is reaching adolescence, they have growth spurts. Females have these growth spurts before males, so therefore it is safe to assume that females in the lower years of the school will tend to be taller that the other males.

I will be carrying out a stratified sample, in the form that, if there are for example 100 boys in year 7 and 80 boys in year 11, then there will be a ratio of 10:8. This means that for every 10 boys that I use in my sample from year 7, there should be 8 boys from year 11.

I am using random sampling to eliminate bias.

My Samples