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  • Level: GCSE
  • Subject: Maths
  • Word count: 1577

In this project I am to make 4 hypotheses about Mayfield High School, then I will analyse the data using suitable diagrams and explaining them to show whether or not my hypotheses were correct.

Extracts from this document...

Introduction

GCSE MATHS:

STATISTICS PROJECT

Aim of project:

In this project I am to make 4 hypotheses about Mayfield High School, then I will analyse the data using suitable diagrams and explaining them to show whether or not my hypotheses were correct.

Hypothesis 1:

I will compare the height of males against that of  females, to do this I will investigate males and females in years 10 and 11. Also I will compare the males heights to that of the females in both year groups.

To do this I will use box and whisker plots of both the males and females and put them on the same axis as this will allow me to compare them more easily. I will expect the boys upper quartile and median to be higher than that of the females, but the girls lower quartile to be lower than that of the males.

Hypothesis 2:

For my second hypothesis I will compare the weights of males and females. To do this I will investigate the males weights against that of the females, also I feel the females will weigh less on average. I will do this in both years 10 and 11 to get a broader view of the information.

...read more.

Middle

Hypothesis 2

During this hypothesis I will be comparing the weights of the females to that of the males, I will do this in both years 11 and 10. Throughout this hypothesis I will refer to my prediction I made earlier.

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In these diagrams I can see that the males on average are heavier than females this can be seen from the larger numbers of people in the higher weight bands. It also shows that girls weigh less as they are seen in the 30-40 range whereas the males are not in that category at all. Also further proving males weigh more is that they are in the 80-90 category whereas the females are not. This proves my earlier prediction that females weigh less than males.

image07.png

image08.png

In these two histograms the same can be seen as before which is that the weights of males in year 11 is on average higher than that of the females. Also that they have a higher upper quartile and that the females have the lower, lower quartile. This just shows the first plot of year 10 students

in greater detail. We can see that the males ranges of weight go up far greater than that of the females.

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Conclusion

image04.png

In this scatter graph positive correlation can be seen again but not as strongly as it was in the first scatter graph. I t can be seen with the line of best fit (blue line) that weight affects height in the same way as earlier, this is that as weight increases so does the height of the individual.

In conclusion I believe there is positive correlation between the heights and weights of the students, meaning that as their weights increase so does their height; as was earlier predicted in my plan.

Final conclusion

During this investigation I believe that my hypotheses have been carried out thoroughly and accurately. I also believe that the predictions I made were correct in every case during the investigation.

Evaluation

For my investigation I feel I have carefully and accurately selected correct data, and removed the anomalous parts to prevent mistakes. Also for added accuracy I have got autograph to draw all the graphs and diagrams for me as it is far more accurate than attempting to do it by hand. I feel that also I have explained the different conclusions thoroughly showing the meanings of the graphs.

...read more.

This student written piece of work is one of many that can be found in our GCSE Height and Weight of Pupils and other Mayfield High School investigations section.

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