Test hypothesis that exercises enhanced peripheral vision

Reference no: EM13470700

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 to 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 follow:

SUBJECT	1	2	3	4	5

BEFORE	9	8	7	10	6
AFTER	10	9	11	12	9

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

1) Are these samples dependent or independent? Explain your choice.

2) State the null and alternate hypotheses.

3) Calculate your test statistic.

4) Is this a one-tailed or two-tailed test?

5) What is the p-value of your test statistic?

6) Conclude your test.

7) Explain your conclusion in the context of the problem.

Reference no: EM13470700

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