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Examples
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A z-test, or t-test, or some other statistical test may indicate that near-ground based temperature measurements are NOT independently and identically distributed i.i.d.
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If you use statistics to infer something about an unknown aspect of some sample, you can use the z-test to see if the difference between that sample mean and the population mean is large enough to be significant.
Willis E on Hansen and Model Reliability « Climate Audit 2006
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Hatton performed a z-test statistical analysis of the period 1999-2009 against 1946-2009 to test the six conclusions.
GayPatriot GayPatriot 2010
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Hatton performed a z-test statistical analysis of the period 1999-2009 against 1946-2009 to test the six conclusions.
Planet Gore on National Review Online Greg Pollowitz 2010
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Hatton performed a z-test statistical analysis of the period 1999-2009 against 1946-2009 to test the six conclusions.
The Register Team Register 2010
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Hatton performed a z-test statistical analysis of the period
Irons in the Fire Firehand 2010
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Hatton performed a z-test statistical analysis of the period 1999-2009 against 1946-2009 to test the six conclusions.
GayPatriot GayPatriot 2010
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Hatton performed a z-test statistical analysis of the period 1999-2009 against 1946-2009 to test the six conclusions.
The Register Team Register 2010
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Calculate the test statistic as a z-score by using the z-test formula.
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Capabilities include analysis of variance, correlation, descriptive statistics, regression, t-test and z-test.
 
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