Question

Blood cocaine concentration (mg/L) was determined both for a sample of individuals who had died from cocaine-induced excited delirium (ED) and for a sample of those who had died from a cocaine overdose without excited delirium; survival time for people in both groups was at most 6 hours. The accompanying data was read from a comparative boxplot in an article.

ED	0	0	0	0	0.1	0.1	0.1	0.1	0.2
	0.2	0.3	0.3	0.3	0.4	0.5	0.7	0.8	1.0
	1.2	2.7	2.8	3.2	4.0	8.8	9.3	11.7	22.0
Non-ED	0	0	0	0	0	0.1	0.1	0.1	0.1
	0.2	0.2	0.2	0.3	0.3	0.3	0.4	0.5	0.5
	0.6	0.8	0.9	1.0	1.2	1.4	1.5	1.7	2.0
	3.2	3.5	4.1	4.3	4.8	5.0	5.6	5.9	6.0
	6.4	7.5	8.3	8.6	9.2	9.6	9.9	11.0	11.5
	12.2	12.7	14.0	16.6	17.8

(a)

Determine the median, fourths, and fourth spread for the ED sample.

medianlower fourthupper fourthfourth spread

Determine the median, fourths, and fourth spread for the Non-ED sample.

medianlower fourthupper fourthfourth spread

Answer 1