Task Description
Hypothesis
I believe that the higher the average hours of TV watched per week decreases the IQ result. Females have a higher IQ and the higher amount of siblings relates to a higher average in TV hours per week.
- Investigation.
- To investigate the range of TV hours watched per week.
- To investigate the range of IQ.
- To contrast and compare the relationship between the range of TV hours and IQ.
- To see if there is a relationship between a higher IQ and genders.
- To see if there is a relationship between the amount of TV hours watched and the number of siblings.
Specify the Problem and Plan
- Collecting Data
- Collect data to be used from the spreadsheet already given to us. I downloaded the data about year 7, 8, 9, 10 and 11 at Mayfield High School from edexcel. I suppose this data is reliable as it is already given to us by the exam board.
- I sort it into categories by selecting all and sorting first by year group and then by gender. This will help me take a fair sample.
- Stratify. I have a list of over 300 students so I want to take a fair sample to include all categories. I will take a fair sample, by choosing my data randomly and not being biased. I need to collect a sample of size 36 as I think with a data pf 36 samples it would be easier to handle, such as in pie charts. After sorting it fairly, I choose at random a sample each other 30, to receive a total of 18 boys, and 18 girls, with a total of 36.
- I will print out the sample spreadsheet, including the gridlines and row/column headings to use for my investigation.
- I will use this data to confirm or disapprove my hypothesis.
