The conclusion of this test, based on a significance level of 0.05, is

Question

Accepted Answer

There is sufficient evidence that the higher illumination gives a decrease in the average time to do the task.

Answer

The higher illumination does not give a decrease in the average time to do the task.

Answer

There is insufficient evidence that the higher illumination gives a decrease in the average time to do the task.

Answer

The higher illumination gives a decrease in the average time to do the task.

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