t-statistic

If we adjust the standard errors for heteroskedasticity the t-statistic falls to -1.87 but the inference remains the same.

Right to Work and Unemployment 2009

While this says that right to work states have about 1% point less unemployment on average, the t-statistic testing the null hypothesis that the coefficient on the right to work state variable is actually zero is computed to be - 1.935.

Right to Work and Unemployment 2009

Osborn and Briffa did not even do a simple t-test although this is available merely by obtaining the correlation as the regression coefficient between two scaled series, yielding the t-statistic in the process.

Bristlecones, Foxtails and Temperature « Climate Audit 2006

Perhaps one could introduce Jones and Mann to the t-statistic, recently introduced around 1920 to test significance allowing for the number of measurements.

O.B. Confidential « Climate Audit 2006

The adjusted r-squared was -0.002; the t-statistic was only 0.85 and the DW an unbelievable 0.06.

Bristlecones, Foxtails and Temperature « Climate Audit 2006

Phillips showed that the t-statistic does not settle down as N increases, but diverges.

AR1 on First Differences « Climate Audit 2006

Unless otherwise indicated all variance and correlation coefficients are valid at the 95% level using the t-statistic with correction for serial correlation Davis 1976.

New Emanuel Presentation « Climate Audit 2006

As I understand what he said there, when he regressed the foxtail series on the relevant grid cell temperature he found the “r2 is 0.002; the adjusted r2 is -0.006; the t-statistic for proxy on temperature is an insignificant 0.52 without even worrying about autocorrelation and the DW is 0.986.”

NAS Panel #2: Bristlecones « Climate Audit 2006

With small samples lt 20 use the t-statistic, not the z-score.

Warmest in a Millll-yun Years « Climate Audit 2006

Phillips showed that the t-statistic does not settle down as N increases, but diverges.

AR1 on First Differences « Climate Audit 2006