Below are the lifetimes, in hours, of fifty 40-watt, 110-volt internally frosted incandescent lamps, taken from forced life tests:
919
|
1196
|
785
|
1126
|
936
|
918
|
1156
|
920
|
948
|
1067
|
1092
|
1162
|
1170
|
929
|
950
|
905
|
972
|
1035
|
1045
|
855
|
1195
|
1195
|
1340
|
1122
|
938
|
970
|
1237
|
956
|
1102
|
1157
|
978
|
832
|
1009
|
1157
|
1151
|
1009
|
765
|
958
|
902
|
1022
|
1333
|
811
|
1217
|
1085
|
896
|
958
|
1311
|
1037
|
702
|
923
|
|
|
|
|
Construct a box plot for these data.