The Ability of School Pupils to Determine Length vs. the Size of an Angle

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The Ability of School Pupils to Determine Length vs. the Size of an Angle

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 wonÂ’t

be able to compare my results on which is estimated the best.

Before I collect a sample I will have to decide how much data I will

need to collect. This is to make sure that the sample is a fair

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