The MEANS Procedure

        Variable      N            Mean         Std Dev         Minimum         Maximum
        --------------------------------------------------------------------------------
        T1           49      89.3877551      11.5430649      64.0000000     100.0000000
        T2           44      72.5681818      18.8869313      17.0000000     100.0000000
        Total        44     162.7727273      27.9558320      83.0000000     197.0000000
        Mean_of_2    44      81.3863636      13.9779160      41.5000000      98.5000000