Only one of those is moving in the right direction above the level of the test of statistical significance.

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Too often, people believe the approach to solving complex questions is to just reduce our standards for confidence when making a decision about data (more technically, this may translate to reducing the level of significance in a statistical test).

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White House spokesman Tony Snow is playing down the significance of North Korea's apparent nuclear test.

NPR: U.N. Debates Response to N. Korean Nuclear Test

The sleep test also was normal, except for a delayed onset of rapid-eye-movement sleep, with unknown medical significance.

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