Investigation into the Correlation between time spent on homework and Success

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Students who attend NewVIc are expected to do a lot of work, homework and revision. Advanced Level (A-Level) students are generally expected to do equal amounts of class and homework and are told the harder and longer you work for the better the grades you achieve will be.

I am going to investigate the amount of time students spend on their work during and out of lessons and compare this time to the grades they achieve. Information like this is useful because it indicates if students are doing enough work, and if not how much they should be doing.

The parent population for this investigation is the A-Level students at NewVIc. I will be sampling 50 students and will ask them the amount of time they spend in class on work, how long they spend at home and the average (mean) grade they get. Each of the grades will be assigned a number the higher the number the better the grade A=6, B=5, C=4, D=3, E=2, N=1 a fail will be represented by F, F=0. The mean grade will be calculated by summing up the marks they get for their grades and then dividing that number by the number of subjects they study.
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The method of sampling I will use is cluster sampling, this is when it is not suitable to use simple random sampling so you separate the population into groups and then take a sample from each of the groups. I will go to the three places in NewVIc where most of the students spend their time these are the canteen, the link, and the library. I will take a sample from each of the areas to make the number of students I ask reasonably proportional I will pick 17 students from the canteen, 17 from the Link and ...

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