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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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Solution Summary

In this solution we test a given hypothesis. All the calculations are provided in an attached file.

Solution Preview

First, the words Subject, Before and After in the chart show that the samples in this question are dependent/repeated, so ...

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