Guy and Arnet Evaluation for hypothesis 1

Math experiment

Hypotheses: The taller the person is, the bigger their hands are.

Experiment Details: We started off by gathering information from all students in the class. We asked them for their height, hand width and hand length. From all this data, we made a table on excel. First, we divided the data into 5 height groups: 145cm~150cm, 150cm~155cm, 155cm~160cm etc. Then, we got the average hand width and length from each group. After we got the average, we compared the average width and length from all height groups to see if there was a trend.

This is an example:

Height groups	Length	Width
165cm~170cm	22.5cm	19.67cm
160cm~165cm	21.8cm	19.34cm
155cm~160cm	21.232cm	18.2cm
150cm~155cm	20.5cm	18cm
145cm~150cm	21.432cm	17.58cm

Conclusion: At the end, we found out that people that are taller have a higher possibility of having bigger hands.

Improvements: For this hypothesis, we decided to show our data using a bar chart. Next time, we could try on using methods such as the ‘scatter diagram or pie chart. Secondly, it could have been possible to divide our height groups into smaller groups so that we can get an even more reliable conclusion.

Arnet & Guy Hypothesese 1

I printed the evaluation sheet out on paper, and will hand it to you in class
Arnet & Guy

Hypothesese 2 (Alyssa, Hien, Tony)

Our pie chart shows that most of the people that we interviewed (14) uses the internet in most of their spare time. Our question was "What do you do most in your free time?" This is a different question from what the other groups have done. Instead of asking how many hours they have of free time AND how much time they use it on the internet, our question is much shorter and simpler.

On the pie chart, it shows that 54% of the 14 we interviewed spends most of their speare time on the internet. So yes, Mr Turner's hypothesis was correct.

Data Handling 1 : Do taller students have bigger hands? & Data Handling 2: Do students spend most of their free time on the internet : Hokyin & Anh Tu

Data Handling 1: By Hokyin


This is the height – hand span. The line of best fit – shows a upward trend amongst the people in our class. This means that taller people – have bigger hands than the shorter people. I picked a line of best fit – because I know the line would show a trend. If it went downwards – it meant that people who have short hands have bigger hands than taller people, on the contary, like the results here – it might show a upward trend – meaning that tall people have bigger hands than shorter people.



This is the height – hand height. Like the previous one - The line of best fit – shows a upward trend amongst the people in our class. This means that taller people – have bigger hands than the shorter people. I picked a line of best fit – because I know the line would show a trend. If it went downwards – it meant that people who have short height have bigger hands than taller people, on the contary, like the results here – it might show a upward trend – meaning that tall people have "taller" hands than shorter people.

Conclusion: These 2 charts show that taller students, generally have bigger/wider hands. There are several execptions/anyomlies, (Jason), but other than that, I think that this is a sutiable conclusion,.

0verall - I would like to collect some more samples/data to make my conclusion more accurate, etc.

Data Handling 2: By Anh Tu


CONCLUSION:
I have found out that my hypothesis is correct and that more than half of our class use more than half of their free time on the internet. Most people would use 2/3 of their free time to go on the internet. This means that most people in our class would use more than half of their free time on the internet.

METHOD:
I will use a bar chart to show these results. The first thing I will do is to find the percentage of all the results then I will create two bar charts one percentage and one with raw data.

Alyssa, Hien and Tony's data handling 1 (2nd) - Taller people and Bigger hands?

Name of the hypothesis : Taller People have bigger hand.




Firstly on Tuesday 17th of May, we collected some data of Maths Set 2's students' (17 people) height, hand span and hand height.





We used blue for height,


red for hand span


and green for hand height.


As you can see, height has large amount and other's are not that much. Look at student 3.


He is not that high but he has a bit of big hand. Now look at student 15. He is extremly tall but he has very little hand.

Conclusion : This cannot be 100% right and it had some similar result like the hypothesis "Students spend most of their freetime on the computer"

Sorry I scanned :(

Hypothesis 2 - Students spend most of their time on the internet - Arnet and Guy

Hypthesis 2 : Students spend most of their free time on the internet.

Data: We surveyed everyone in the class asking :

1) How much free time do you have in 1 day

2)How much of that time do you spend on the internet

Statistical Measure: Fraction (e.g. 90 / 120)

Diagram: Bar chart - 1 bar for how much free time, another for how much internet time

Conclusion: The results are unclear. As you can see, the proportions are random. However, if we add results the fractions, the 8.2 math set spends over half of their free time on the internet.

Improvement: To improve, I would have made a pie chart so that we could see proportions clearly. However, the way I presented my data made it hard to put on a pie chart.

I would also change the type of my bar chart (like Jason's) - so that it would show proportions easier. but as previously mentioned, I have tried but the way I presented the information made it confusing.

Data Handling 2 (do students spend most of their free time on the computer?) Sean and Aston

Hypothesis: Students spend most of their time on the computer.
Statistical measures: Percentages
Observations: The overall results were a little scattered when we grouped the amount of free time from lowest to highest. Overall, there is no real trend line though it is a fact that when students have more free time, they also spend more time on the computer.
I have posted two graphs here, one from Autograph and one from Excel (forgive me Mr Turner!)
Please check if they graphs relate to our findings.
Evaluation: The graph from Autograph could be more detailed and a little more clear. I used an Excel graph but this was only to reinforce our observations.

Excel Graph

Autograph graph