Question: 4 8 7 7 2 6 8 5 9 6 1 5 6 5 9 Use the sign test at the level of 0.05 significance

4 8 7 7 2 6 8 5 9 6 1 5 6 5 9

Use the sign test at the level of 0.05 significance to test that the mean value is 5 or less for the data above. Set the necessary hypotheses appropriately.

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