Do Left and right-handed people have roughly the same reaction time with their dominant hand.
Hypothesis 1
I predict that left and right-handed people will have roughly the same reaction time with their dominant hand.
Plan
In order to prove my hypothesis I am going to use stratified random sampling, so that I get a fair sample to conduct my study. I will find both the average and the range to see if my hypothesis is correct.
Stratified Random Sampling
I am going to use 30 pieces of data for my sample.
I sorted the data excluding any that did not say what hand they used or used both hands as their dominant.
Firstly I must find the ratio of left handed people to right:
There are 300 pieces of data in total.
There are 32 left handed people.
And 268 right handed people.
In order to find the ratio I have to divide the number of left handed people with the total number of people, and then I have to multiply the answer by 30. I have to do the same to the right.
Left= 32 / 300 x 30 = 3.2
Right=268 / 300 x 30 = 26.8
The ratio is 3.2 : 26.8 (left : right)
Because we are dealing with people we can use decimals so we have to round the decimals. The ratio comes to 3:27
I predict that left and right-handed people will have roughly the same reaction time with their dominant hand.
Plan
In order to prove my hypothesis I am going to use stratified random sampling, so that I get a fair sample to conduct my study. I will find both the average and the range to see if my hypothesis is correct.
Stratified Random Sampling
I am going to use 30 pieces of data for my sample.
I sorted the data excluding any that did not say what hand they used or used both hands as their dominant.
Firstly I must find the ratio of left handed people to right:
There are 300 pieces of data in total.
There are 32 left handed people.
And 268 right handed people.
In order to find the ratio I have to divide the number of left handed people with the total number of people, and then I have to multiply the answer by 30. I have to do the same to the right.
Left= 32 / 300 x 30 = 3.2
Right=268 / 300 x 30 = 26.8
The ratio is 3.2 : 26.8 (left : right)
Because we are dealing with people we can use decimals so we have to round the decimals. The ratio comes to 3:27