rubber                  package:pad                  R Documentation

_P_A_D  -  _R_u_b_b_e_r _a_b_r_a_s_i_o_n _e_x_p_e_r_i_m_e_n_t _d_a_t_a

_D_e_s_c_r_i_p_t_i_o_n:

     The 'rubber' data frame has 10 rows and 3 columns.

_U_s_a_g_e:

     data(rubber)

_F_o_r_m_a_t:

     This data frame contains the following columns:

     _p_i_e_c_e a numeric vector with the number of the test piece

     _u_n_t_r_e_a_t_e_d a numeric vector with measured abrasion resistance for
          untreated half

     _t_r_e_a_t_e_d a numeric vector with measured abrasion resistance for
          treated half

_D_e_t_a_i_l_s:

     These data are from a paired comparison experiment to assess the
     effectiveness of a chemical treatment in increasing the abrasion
     resistance of rubber. A more detailed description of the
     experiment is given in the lecture notes.

_S_o_u_r_c_e:

     Davies, O.L. (1954). Design and Analysis of Industrial
     Experiments. Oliver and Boyd.

