THIS IS DATAPLOT TEXT FILE NORPPCC.TEX
PERCENT POINTS OF THE NORMAL PROBABILITY PLOT
           CORRELATION COEFFICIENT TEST FOR NORMALITY.
REFERENCE--FILLIBEN, JAMES J. (1975) "THE PROBABILITY PLOT
           CORRELATION COEFFICIENT TEST FOR NORMALITY",
           TECHNOMETRICS, VOL. 17, NO. 1, FEBRUARY 1975,
           PAGES 111-117.
EXAMPLE OF USE--
   QUESTION: SUPPOSE THE ANALYST HAS 15 OBSERVATIONS, AND
             THE CALCULATED NORMAL PROBABILITY PLOT
             CORRELATION COEFFICIENT IS .984.
             IS THE DATA NORMALLY DISTRIBUTED?
   ANSWER:   FROM THE TABLE BELOW, THE 5% POINT
             OF THE NORMAL PPCC = .937.
             SINCE THE CALCULATED NORMAL PPCC = .984,
             THEN (AT THE 5% ALPHA LEVEL)
             THERE IS NO EVIDENCE FROM THE DATA TO REFUTE
             THE ASSUMPTION OF NORMALITY.  IN PRACTICE,
             WE WOULD "ACCEPT" THE HYPOTHESIS OF NORMALITY.
TO READ THIS INTO DATAPLOT--
   SKIP 25
   READ NORPPCC.TEX N PP1 PP5
 
SAMPLE SIZE N   1% POINT    5% POINT
------------------------------------
       3         .869        .879
       4         .822        .868
       5         .822        .879
       6         .835        .890
       7         .847        .899
       8         .859        .905
       9         .868        .912
      10         .876        .917
      11         .883        .922
      12         .889        .926
      13         .895        .931
      14         .901        .934
      15         .907        .937
      16         .912        .940
      17         .916        .942
      18         .919        .945
      19         .923        .947
      20         .925        .950
      21         .928        .952
      22         .930        .954
      23         .933        .955
      24         .936        .957
      25         .937        .958
      26         .939        .959
      27         .941        .960
      28         .943        .962
      29         .945        .962
      30         .947        .964
      31         .948        .965
      32         .949        .966
      33         .950        .967
      34         .951        .967
      35         .952        .968
      36         .953        .968
      37         .955        .969
      38         .956        .970
      39         .957        .971
      40         .958        .972
      41         .958        .972
      42         .959        .973
      43         .959        .973
      44         .960        .973
      45         .961        .974
      46         .962        .974
      47         .963        .974
      48         .963        .975
      49         .964        .975
      50         .965        .977
      55         .967        .978
      60         .970        .980
      65         .972        .981
      70         .974        .982
      75         .975        .983
      80         .976        .984
      85         .977        .985
      90         .978        .985
      95         .979        .986
     100         .981        .987