How can I understand the values of '"p>|t|"?
If the p-value of the coefficient is not statistically significant, the 'predict' values are also meaningless?
The result below, all p-value is not statistically significant.
Does it mean that this result is meaningless?
EX)
. mkspline YM1 1 YM2 2 YM3 3 YM4 = M2013, marginal
. reg SUP YM*
Source | SS df MS Number of obs = 134
-------------+---------------------------------- F(5, 128) = 1.34
Model | 6568.21551 5 1313.6431 Prob > F = 0.2533
Residual | 125878.895 128 983.428866 R-squared = 0.0496
-------------+---------------------------------- Adj R-squared = 0.0125
Total | 132447.11 133 995.842935 Root MSE = 31.36
------------------------------------------------------------------------------
SUP | Coef. Std. Err. t P>|t| [95% Conf. Interval]
-------------+----------------------------------------------------------------
YMD | -2.20e-06 4.30e-06 -0.51 0.609 -.0000107 6.30e-06
YM1 | 14.00825 19.54656 0.72 0.475 -24.66795 52.68445
YM2 | -29.35708 29.81685 -0.98 0.327 -88.3548 29.64065
YM3 | 3.771133 24.12514 0.16 0.876 -43.96457 51.50684
YM4 | 13.498 12.07331 1.12 0.266 -10.3911 37.38711
_cons | 176.9619 17.90791 9.88 0.000 141.5281 212.3958
------------------------------------------------------------------------------
