Notes 16- Randomized Distributions and P-values

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4 Terms

1
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Randomized distribution

Represents results expected by chance if the new hypothesis is true.

2
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Difference between groups centered where ?

Commonly centered at zero under the no hypothesis of no difference.

3
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P-value

The chance assuming HO is true of getting a result as extreme or more extreme than the observed result in the directions specified by HA.

4
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Small P-value mean ?


The observed result would be unusual if HO were true. It is evidence against HO but it is not the probability that HO is true.