• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

My first hypothesis is that school pupils can estimate the length of a line, in millimeters, better than the size of an angle, in degrees. Plan for collecting dataTo see if my hypothesis is true I am going to have to support it with data

Extracts from this document...

Introduction

Chloe McCloskey

First Hypothesis

My first hypothesis is that  school pupils can estimate the length of a line, in millimeters, better than the size of an angle, in degrees.

Plan for collecting data

To see if my hypothesis is true I am going to have to support it with data. The first aspect I had to consider was whether to collect primary or secondary data. I decided to collect them both, as then I will have a variety of data to compare. Then mainly I had to think what data would suggest that my hypothesis is true.

My plan is to collect data on people estimating a line and an angle. I did a pilot study to find the best way of asking people to estimate. I learnt that I should ask people to write their estimates down otherwise other people may be influenced from their answer making the data would be biased. This also made me come to the decision to ask the people specifically to estimate in millimeters so the data I collected was in the same unit. I will deal with non-response by using the mean value of the whole population as its value.

From this I will need to find the percentage error otherwise I won’t be able to compare my results on which is estimated the best.

...read more.

Middle

40

10

35

35

67

9

35

55

166

7

20

35

55

11

54

36

72

8

100

45

122

8

50

270

64

9

50

45

102

7

60

45

132

9

38

45

9

11

50

50

Median:

40

45

*Non – response data so used mean of the whole population.

I will calculate the median as the average because it didn’t take the anomalies in the data into account.

An Unequal Histogram to show the distribution of people estimating a Line.

Estimate of line (mm)

Number of people

Width

Frequency Density

5 ≤ e < 25

    3

20

0.15

25 ≤ e < 40

9

15

0.6

40 ≤ e < 45

5

5

1

45 ≤ e < 55

11

10

1.1

55 ≤ e < 100

2

45

0.04

See Diagram (1)

An Unequal Histogram to show the distribution of people estimating an Angle.

Estimate of Angle ( º)

Number of people

Width

...read more.

Conclusion

If I were to rely fully on this investigation to draw specific conclusions on my population I would need more reliable results and so therefore would need to take a bigger sample size, this would also decrease the effect that extreme values have on the sample. Another aspect affecting the reliability of the data to provide evidence for the population is the fact that individuals in the sample didn’t all consider their estimations with the same contemplation (i.e. some people took it more seriously and took more time over it than others). This could be prevented in future samples by perhaps giving short time limits in the estimation periods.

One good aspect of the investigation was the efficiency at which I collected the results, along with the preliminary experiment providing a good basis for the actual one. The range of methods I used to manipulate the data was also a success.

As an extension to my investigation I could extend the tested population to all age groups and gather data as to how well they can estimate the area or volume of an object as well as lines and angles. This would involve the collection of a lot more data.

All in all I think the investigation was very successful as I got conclusive results within my sample, which provided me with a good insight into the estimations of lines and angles. I enjoyed it very much!!!!!!! COOL AND FUN!!!! Hahahaha.

        -  -

...read more.

This student written piece of work is one of many that can be found in our AS and A Level Probability & Statistics section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Probability & Statistics essays

  1. Statistics - Men are more accurate than women at estimating the length of a ...

    Mean: 3140 / 30 = 10.4cm Size Of Angle Men's Mean: 1310 / 30 = 43.6 degrees Women's Mean: 1395 / 30 = 46.5 degrees From working out the mean for the men's and women's sets of data I found out that my two hypotheses are correct in saying that

  2. I am going to design and then carry out an experiment to test people's ...

    prove my hypothesis, but not give me so much data that all my graphs are cluttered. I have chosen to do a stratified sample. This is because I wish to have a range of pupils, and if I just did a random sample, I could end up with mostly older girls, or mostly younger.

  1. Anthropometric Data

    There are three types or direction of correlations, there are called positive correlation and negative correlation and not forgetting not have 'no correlation' at all. Positive correlation When observing the pattern on this particular scatter it show that one set of the values increases, the other set tend to increase.

  2. Guestimate - investigate how well people estimate the length of lines and the size ...

    I will use numbers like 8.4cm to make it harder to estimate. I will not choose numbers like 7.5cm either, because they are halves and are easy to estimate. I will only choose numbers with one decimal place because that way it isn't too hard to guess.

  1. I am going to investigate the hypothesis that girls do better than boys at ...

    Although these calculations were a strong support the inter quartile range didn't back-up my hypothesis with the boys score ranging from the lowest score out of the sample taken to the highest score form the sample, this gave the result of the inter quartile range for the girls being 4.5 and for the boys 5.5.

  2. Guestimate - Is there a link between a person's ability to estimate the length ...

    their gender, (male or female) and their maths set, (1-5). This wider availability of data would enable us to draw a firmer conclusion and create more hypotheses to investigate and prove either correct or incorrect. Once the data had been collected from year seven, year ten and 68 adults the data was entered onto a computer database, in Microsoft Excel.

  1. Teenagers and Computers Data And Statistics Project

    Introduction to Part 2 The Big Painted Red Cube I was then given a worksheet to complete, which took things 1 step further to evaluate the differences for a general cuboid. I will try and show you how I did this in the next part.

  2. Design an investigation to see if there is a significant relationship between the number ...

    These fronds have a prominent midrib, and air bladders within their structures, giving the fronds buoyancy, allowing them to float up to the surface of the water. This consequently enables maximum photosynthesis to take place. The longer the frond, the heavier that frond will be.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work