例题09-03(例 ): reg y xSource | SS df MSNumber of obs = 8-------------+------------------------------ F(1, 6) = 2097 Model |813429108 1813429108 ProbF=00038Residual |232758243 6038793041 R-squared =077
例题03-09 (例 ) sktest mean Skewness/Kurtosis tests for Normality ------- joint ------Variable |Pr(Skewness) Pr(Kurtosis)adj chi2(2)Probchi2-------------+-------------------------------------------------------mean |0538 0675056 07541
例题03-03 di 364-196*12/sqrt(200)34736885 di 364+196*12/sqrt(200)38063115 cii 200 364 120Variable | Obs MeanStd Err [95% Conf Interval]-------------+---------------------------------------------------
例题09-09(例): gen w=1/(x*x) reg y x [weight=w](analytic weights assumed)(sum of wgt is 20932e+02)Source | SS df MSNumber of obs =10-------------+------------------------------ F(1, 8) = 7253 Model |28
例题03-04 ttesti 29 2010 702 32 1689 846Two-sample t test with equal variances------------------------------------------------------------------------------ | ObsMeanStd Err Std Dev [95% Conf Interval
例题03-06 (例 ) ttest x1=x2Paired t test------------------------------------------------------------------------------Variable | ObsMeanStd Err Std Dev [95% Conf Interval]---------+--------------------
例 03-01 drop _all set seed 0 set obs 10obs was 0, now 10 quietlyfor num 1/100:gen varX=invnorm(uniform())*53+1677 format var* %92f ci var*Variable |ObsMeanStd Err [95% Conf Interval]-------------+--
例题03-08 ttesti 20 146 136 20 113 07,uneTwo-sample t test with unequal variances------------------------------------------------------------------------------ | ObsMeanStd Err Std Dev [95% Conf Inter
例题03-11sdtesti 20 146 136 20 113 07Variance ratio test------------------------------------------------------------------------------ | ObsMeanStd Err Std Dev [95% Conf Interval]---------+-----------
例 04-03 drop _all set obs 15obs was 0, now 15 set seed 0 gen weight=uniform() sort weight gen block=group(5) set seed 1 gen suijishu=uniform() sort block suijishu egen treat=seq(),t(3) sort weight l
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