

   PPootteennccyy ooff OOrrcchhaarrdd SSpprraayyss

        data(bees)

   FFoorrmmaatt::

        A data frame with 64 observations on 4 variables.

         [,1]      rowpos         numeric      Row of the design
         [,2]      colpos         numeric      Column of the design
         [,3]      treatment      factor       Treatment level
         [,4]      decrease       numeric      Response

   DDeessccrriippttiioonn::

        An experiment was conducted to assess the potency of
        various constituents of orchard sprays in repelling
        honeybees.  Individual cells of dry comb were filled
        with measured amounts of lime sulphur emulsion in
        sucrose solution.  Seven different concentrations of
        lime sulphur ranging from a concentration of 1/100 to
        1/1,562,500 in succesive factors of 1/5 were used as
        well as a solution containing no lime sulphur.

        The responses for the different solutions were obtained
        by releasing 100 bees into the chamber for two hours,
        and then measuring the decrease in volume of the solu-
        tions in the various cells.

        An 8x8 Latin Square design was used and the treatments
        were coded as follows:

         A     highest level of lime sulphur
         B     next highest level of lime sulphur
         .
         .
         .
         G     lowest level of lime sulphur
         H     no lime sulphur

   SSoouurrccee::

        Finney, D. J. (1947).  Probit Analysis.  Cambridge.

   RReeffeerreenncceess::

        McNeil, D. R. (1977).  Interactive Data Analysis.
        Wiley.

