CWT Industry Statistics Based Upon LTMS Data Sets
April Period   =10/1 to 3/31
October Period =4/1 to 9/30
pooled s is by reference material ( example: oil)

                                                 Degrees of      Pooled
  Parameter   Period        N-size  Average Yi      Freedom           s
  ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ
                                                                       
  CHST         2016APR          15     -0.2947           12      0.2113
  CHST         2016OCT           6      0.1075            3      0.2037
  CHST         2017APR           7     -0.6168            5      0.1001
  CHST         2017OCT           9     -0.2183            6      0.2067
  CHST         2018APR           1      0.0310            0       .