Figures & data
Table 1. Manatee data divided into three regions based on x‐score. In each region, the first column x is the number of powerboat registrations, in thousands, and the second column y is the number of manatees killed.
Table 2. Types of outliers considered in the simulation study.
Table 3. Monte Carlo Results: Means, standard deviations, and mean square errors (x 103) of the least squares (LS) and median-median (MM) slope estimates for 1000 replications.
Model: Y = 0 + 1X + ; X's: Set 1;
~ N(0, 12).
Lower region: X1, …, X8; Middle region: X9, …, X16; Upper region:X17, …, X24.
Table 4. Monte Carlo Results: Means, standard deviations, and mean square errors (x 103) of the least squares (LS) and median-median (MM) slope estimates for 1000 replications.
Model: Y = 0 + 1X + ; X's: Set 1;
~ N(0, 52).
Lower region: X1, …, X8; Middle region: X9, …, X16; Upper region:X17, …, X24.
Table 5. Monte Carlo Results: Means, standard deviations, and mean square errors (x 103) of the least squares (LS) and median-median (MM) slope estimates for 1000 replications.
Model: Y = 0 + 1X + ; X's: Set 2;
~ N(0, 12).
Lower region: X1, …, X8; Middle region: X9, …, X16; Upper region:X17, …, X24.
Table 6. Monte Carlo Results: Means, standard deviations, and mean square errors (x 103) of the least squares (LS) and median-median (MM) slope estimates for 1000 replications.
Model: Y = 0 + 1X + ; X's: Set 2;
~ N(0, 52).
Lower region: X1, …, X8; Middle region: X9, …, X16; Upper region:X17, …, X24.
Figure 6. Density estimates of the slopes for the 1000 replications for least squares and median-median estimates and for = 1 and
= 5; X's: Set 1; no outliers.
![Figure 6. Density estimates of the slopes for the 1000 replications for least squares and median-median estimates and for = 1 and = 5; X's: Set 1; no outliers.](/cms/asset/73fcf4da-af95-463b-8bfb-9698d34781c2/ujse_a_11910582_f0006_b.gif)
Figure 7. Density estimates of the slopes for the 1000 replications for least squares and median-median estimates and for = 1 and
= 5; X's: Set 1; one high and one low outlier at the end — .
![Figure 7. Density estimates of the slopes for the 1000 replications for least squares and median-median estimates and for = 1 and = 5; X's: Set 1; one high and one low outlier at the end — Table 2, design (e).](/cms/asset/c496864b-9981-4add-8077-7158e3011f7e/ujse_a_11910582_f0007_b.gif)