ISBV156 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
                                                                       
  MRV          2024OCT          12      0.0705           11     812.217
  MRV          2025APR           5      0.8153            4     393.700
  SOOT4        2024OCT          12      0.0000           11      0.2981
  SOOT4        2025APR           6     -0.8672            5      0.1346
  SOOT         2024OCT          12      0.0332           11      0.3965
  SOOT         2025APR           6     -0.6257            5      0.1738
  SOOT5        2024OCT          12      0.0171           11      0.3980
  SOOT5        2025APR           6     -0.5973            5      0.2375