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Solved: Blood cocaine concentration (mg/L) was determined
Chapter 1, Problem 59E(choose chapter or problem)
Problem 59E
Blood cocaine concentration (mg/L) was determined both for a sample of individuals who had died from cocaineinduced 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 the article “Fatal Excited Delirium Following Cocaine Use” (J. of Forensic Sciences, 1997: 25–1).
a. Determine the medians, fourths, and fourth spreads for the two samples.
b. Are there any outliers in either sample? Any extreme outliers?
c.Construct a comparative boxplot, and use it as a basis for comparing and contrasting the ED and non-ED samples
Questions & Answers
QUESTION:
Problem 59E
Blood cocaine concentration (mg/L) was determined both for a sample of individuals who had died from cocaineinduced 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 the article “Fatal Excited Delirium Following Cocaine Use” (J. of Forensic Sciences, 1997: 25–1).
a. Determine the medians, fourths, and fourth spreads for the two samples.
b. Are there any outliers in either sample? Any extreme outliers?
c.Construct a comparative boxplot, and use it as a basis for comparing and contrasting the ED and non-ED samples
ANSWER:
Solution:
Step 1 of 4:
The given data is
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 |
1.5 |
2.7 |
2.8 |
3.5 |
4 |
8.9 |
9.2 |
11.7 |
21 |
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 |
1.2 |
1.4 |
1.5 |
1.7 |
2 |
3.2 |
3.5 |
4.1 |
4.3 |
4.8 |
5 |
5.6 |
5.9 |
6 |
6.4 |
7.9 |
8.3 |
8.7 |
9.1 |
9.6 |
9.9 |
11 |
11.5 |
12.2 |
12.7 |
14 |
16.6 |
17.8 |