Data on velocities of 82 galaxies - are they from a normal mixture? 
>From Roeder, K. (1990) 
"Density estimation with confidence sets exemplified by superclusters and voids in the galaxies." J. Amer.  Statist. Assoc. 85, 617-624. 
The galaxies were in six closely sapces regions; the data here have the region for each galaxy from the original astronomical paper.
Velocity v is give here in the original units; statistical analyses have used v/1000 as the response variable.

  v region

 9172 1  
 9350 1  
 9483 1  
 9558 2  
 9775 4 
10227 4
10406 4 
16084 6 
16170 6 
18419 4 
18552 4 
18600 4
18927 6 
19052 4 
19070 4 
19330 4 
19343 4 
19349 4
19440 4 
19473 4 
19529 4 
19541 4 
19547 4 
19663 6
19846 2 
19856 4 
19863 4 
19914 2 
19918 4 
19973 4
19989 4 
20166 6 
20175 6 
20179 4 
20196 4 
20215 4
20221 4 
20415 3 
20629 4 
20795 4 
20821 3 
20846 4
20875 3 
20986 4 
21137 3 
21492 5 
21701 5 
21814 5
21921 1 
21960 5 
22185 2 
22209 5 
22242 1 
22249 4
22314 5 
22374 3
22495 5 
22746 2 
22747 2 
22888 2
22914 5 
23206 2 
23241 2 
23263 1 
23484 1 
23538 2
23542 1 
23666 2 
23706 1 
23711 2 
24129 1 
24285 2
24289 2 
24366 1 
24717 2 
24990 4 
25633 4 
26960 1
26995 6 
32065 6 
32789 2 
34279 1


