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  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03-04计算结果.doc

  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03-06计算结果.doc

  例题03-06 （例 ） ttest x1=x2Paired t test------------------------------------------------------------------------------Variable | ObsMeanStd Err Std Dev [95% Conf Interval]---------+--------------------

• 例03-01计算结果.doc

  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03-08计算结果.doc

  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03-11计算结果.doc

  例题03-11sdtesti 20 146 136 20 113 07Variance ratio test------------------------------------------------------------------------------ | ObsMeanStd Err Std Dev [95% Conf Interval]---------+-----------

• 例04-03计算结果.doc

  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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  例题03-05 （例 ） sum hbVariable | ObsMeanStd Dev MinMax-------------+--------------------------------------------------------hb |3613083332574102 88178 ttest hb=140One-sample t test---------------------

• 例10-03计算结果.doc

  例 10-03 （例 ）graph pie freq,over(reason) legend(label(1 无菌性松动) label(2 感染) label(3 假体周围骨折) label(4 假体不稳定) label(5 其他)) plabel(_all percent,format(%20f))