Comparison of heights of boys and girls at Mayfield high school.

This essay hasn't yet been marked by one of our teachers

You can view 1 essay on Height and Weight of Pupils and other Mayfield High School investigations that have been Marked by Teachers

The first 200 words of this essay...

Comparison of heights of boys

And girls at Mayfield high school.

My aim is to compare the heights of boys and girls at Mayfield high school.

There are 27 columns of data about each of the 1183 pupils at Mayfield high school making 31941 items of data.

This is way too much data for me to examine in the time specified for the task to be completed. So therefore i will need to take a sample from the data base to analyse.

Since the ages of the pupils are very likely to have an effect on the heights of the pupils, it is important that my sample reflects the distribution of ages accurately. If I took a simple random sample then I might get more pupils from one year and less in another, so to prevent that occurrence I will take a stratified sample.

To have enough data to analyse, I will need the heights of 30 or more boys and girls, so I will take a sample of 40 boys and 40 girls.

Year

Boys

Girls

7

151