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# Test the Hypothesis: Eye Exercises and Peripheral Vision

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A researcher conducted an experiment to see if specific eye exercises can improve peripheral vision. A random sample of 5 people were rated for peripheral vision on a scale of 1-20, where 9 is considered average and higher scores indicate better peripheral vision. Then they followed the prescribed eye exercise program and were rated again. The results are as follows:

Subject 1 2 3 4 5
Before 10 9 7 11 8
After 12 9 10 10 11

Test the hypothesis that exercises improved peripheral vision. Use a 5% significance level.

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