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Mayfield High School Data Handling Project

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Introduction

James Robertson 11S

Mayfield High School Data Handling Project

Aim:

I am going to collect and express evidence to support (or not support) the hypothesis that:

        Males have a higher IQ than females, in years 7-9

Collecting the data

For my project I needed to collect data on a number of students IQ, gender and year. I obtained all of my information from the Mayfield High School database. This is a fictitious school but the data is based on a real school. Because it is based on a real school, the evidence will be reliable and will be accurate enough for me to draw conclusions.

The database held information on a total of 1183 students, this will be very hard to analyse because there is a lot of data and drawing graphs and diagrams could be tricky. I have decided to take a sample of the students in years 7,8 and 9. I put the list of students on the computer in order of their year.

...read more.

Middle

9

Female

103

9

Female

100

9

Female

85

9

Female

100

9

Female

100

9

Female

112

9

Female

94

7

Male

100

7

Male

106

7

Male

100

7

Male

94

7

Male

82

7

Male

110

7

Male

108

7

Male

98

7

Male

108

7

Male

110

7

Male

106

7

Male

108

7

Male

117

7

Male

100

8

Male

103

8

Male

97

8

Male

100

8

Male

101

8

Male

105

8

Male

116

8

Male

108

8

Male

103

8

...read more.

Conclusion

Box Plots

The two box plots are quite similar. The main difference is the range of the male box plot is larger. They are both slightly positively skewed but male data is more positively skewed. The second quartile is on both box plots are small but more so on the male box plot.

Cumulative Frequency

Below is a graph to show the cumulative frequency of both males and females:

image03.png

The cumulative frequency graphs are also very similar particularly in the middle section. It shows that there are more females with lower IQ and fewer females with higher IQ. This diagram shows the spread of the data, which is about the same.

Conclusion:

My investigation gives evidence to support that males from years 9-11 have a slightly higher IQ than females from years 9-11. Although the data that I have shows that the two are very similar. If I had more data from a wider range of people I may be able to come to a stronger conclusion.

...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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