Introduction to Research Design and Statistics

Midterm Results


Compare Midterms

univar mt2005 mt2004 mt2003 mt2002 mt2001 mt2000 mt1999

                                        -------------- Quantiles --------------
Variable       n     Mean     S.D.      Min      .25      Mdn      .75      Max
-------------------------------------------------------------------------------
  mt2005      35    94.11     5.36    73.00    92.00    96.00    98.00   100.00
  mt2004      31    92.26     7.17    72.00    88.00    94.00    98.00   100.00
  mt2003      26    93.38     7.37    76.00    90.00    95.00   100.00   100.00
  mt2002      32    97.34     2.51    89.00    96.00    98.00   100.00   100.00
  mt2001      22    97.16     2.97    91.00    94.50    98.50    99.50   100.00
  mt2000      34    94.94     4.35    83.00    93.00    96.50    98.00   100.00
  mt1999      19    92.68     5.97    77.00    88.00    94.00    98.00   100.00
 mt99-05     199    94.15     6.10    72.00    91.00    96.00    98.00   100.00
-------------------------------------------------------------------------------

Fall 2005 Midterm

summarize mt2005, detail

                           mt2005
-------------------------------------------------------------
      Percentiles      Smallest
 1%           73             73
 5%           85             85
10%           89             86       Obs                  35
25%           92             89       Sum of Wgt.          35

50%           96                      Mean           94.11429
                        Largest       Std. Dev.       5.36202
75%           98            100
90%          100            100       Variance       28.75126
95%          100            100       Skewness      -1.925834
99%          100            100       Kurtosis       8.005897

stem mt2005, lines(2) round(1)

mt2005 rounded to integers

   7* | 3
   7. | 
   8* | 
   8. | 56999
   9* | 11222344
   9. | 55666666777788888
  10* | 0000

kdensity mt2005, width(5) normal legend(off)
   

Fall 2004 Midterm

summarize mt2004, detail
  
                           mt2004
-------------------------------------------------------------
      Percentiles      Smallest
 1%           72             72
 5%           79             79
10%           84             80       Obs                  31
25%           88             84       Sum of Wgt.          31

50%           94                      Mean           92.25806
                        Largest       Std. Dev.      7.169229
75%           98            100
90%          100            100       Variance       51.39785
95%          100            100       Skewness       -.929521
99%          100            100       Kurtosis       3.410234
  
stem mt2004, lines(2) round(1)
  
Stem-and-leaf plot for mt2003
  
mt2004 rounded to integers

   7* | 2
   7. | 9
   8* | 044
   8. | 7888
   9* | 00002444
   9. | 5666788
  10* | 0000000
  
kdensity mt2004, width(5) normal legend(off)
   

Fall 2003 Midterm

summarize mt2003, detail
  
                           mt2003
-------------------------------------------------------------
      Percentiles      Smallest
 1%           76             76
 5%           82             82
10%           83             83       Obs                  26
25%           90             84       Sum of Wgt.          26

50%           95                      Mean           93.38462
                        Largest       Std. Dev.      7.370628
75%          100             94
90%          100             96       Variance       54.32615
95%          100             98       Skewness      -.8036409
99%          100            100       Kurtosis       2.412561
  
stem mt2003, lines(2) round(1)
  
Stem-and-leaf plot for mt2003
  
mt2003 rounded to integers

   7. | 6
   8* | 13334
   8. | 
   9* | 0022344
   9. | 688
  10* | 0000000000
  
kdensity mt2003, width(5) normal legend(off)
   

Fall 2002 Midterm

summarize mt2002, detail
  
                           mt2002
-------------------------------------------------------------
      Percentiles      Smallest
 1%           89             89
 5%           94             94
10%           94             94       Obs                  32
25%           96             94       Sum of Wgt.          32

50%           98                      Mean           97.34375
                        Largest       Std. Dev.      2.509458
75%          100            100
90%          100            100       Variance       6.297379
95%          100            100       Skewness      -1.156459
99%          100            100       Kurtosis       4.835533
  
stem mt2002, lines(2) round(1)
  
Stem-and-leaf plot for mt2002
  
mt2002 rounded to integers
  
   8. | 9
   9* | 444
   9. | 5566666678888888889
  10* | 000000000
  
kdensity mt2002, xlabel ylabel normal
   

Fall 2001 Midterm

summarize mt2001, detail
  
                           mt2001
-------------------------------------------------------------
      Percentiles      Smallest
 1%           91             91
 5%         91.5           91.5
10%           93             93       Obs                  22
25%         94.5             94       Sum of Wgt.          22

50%         98.5                      Mean           97.15909
                        Largest       Std. Dev.      2.965622
75%         99.5            100
90%          100            100       Variance       8.794913
95%          100            100       Skewness      -.7673038
99%          100            100       Kurtosis       2.219118
  
stem mt2001, lines(2) round(1)
  
Stem-and-leaf plot for mt2001
  
mt2001 rounded to integers
  
   9* | 1234
   9. | 55577899999
  10* | 0000000
  
  
kdensity mt2001, xlabel ylabel normal
  

Fall 2000 Midterm

summarize mt2001, detail
  
                           mt2000
-------------------------------------------------------------
      Percentiles      Smallest
 1%           83             83
 5%           86             86
10%           89             87       Obs                  34
25%           93             89       Sum of Wgt.          34
  
50%         96.5                      Mean           94.94118
                        Largest       Std. Dev.      4.348049
75%           98             99
90%           99            100       Variance       18.90553
95%          100            100       Skewness      -1.068631
99%          100            100       Kurtosis       3.323842
  
stem mt2000, lines(2)
  
Stem-and-leaf plot for mt2000
  
   8* | 3
   8. | 67999
   9* | 12344
   9. | 55555677778888888899
  10* | 000
    
kdensity mt2000, xlabel ylabel normal
  

Fall 1999 Results

summarize mt1999, detail
  
                         mt1999
-----------------------------------------------------------
      Percentiles    Smallest
 1%           77           77
 5%           77           84
10%           84           86       Obs                  19
25%           88           88       Sum of Wgt.          19
  
50%           94                    Mean           92.68421
                      Largest       Std. Dev.      5.972647
75%           98           98
90%           98           98       Variance       35.67251
95%          100           98       Skewness      -1.019907
99%          100          100       Kurtosis       3.518102
  
stem mt1999
  
Stem-and-leaf plot for mt1999
  
   7. | 7
   8* | 4
   8. | 688
   9* | 02234
   9. | 56688888
  10* | 0
    
kdensity mt1999, xlabel ylabel
  

  
summarize final, detail
  
                            final
-------------------------------------------------------------
      Percentiles      Smallest
 1%           73             73
 5%           73             74
10%           74             77       Obs                  19
25%           85             80       Sum of Wgt.          19

50%           88                      Mean           87.89474
                        Largest       Std. Dev.      7.519565
75%           94             94
90%           98             95       Variance       56.54386
95%           99             98       Skewness      -.5837628
99%           99             99       Kurtosis       2.505307
  
stem final, lines(2)
  
Stem-and-leaf plot for final
  
  7* | 34
  7. | 7
  8* | 0
  8. | 567778
  9* | 012344
  9. | 589


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Phil Ender, 16nov04