Show your work for full credit. Give your answers to at least 3 decimal places w

Question

Show your work for full credit. Give your answers to at least 3 decimal places whenever rounding is used. In a study for fatal excited delirium caused by cocaine use, blood cocaine concentration (mg/L) was measured for a sample of 20 individuals who had died from cocaine induced excited delirium (ED). The data is given below. What is the possible target population? What is the variable of interest? Identify the variable in 2, as either categorical or numerical and also if the values are Ordinal, Nominal, Continuous or Discrete. Compute the sample mean.

Explanation / Answer

1. The possible target population is the individuals who died of cocaine induced excited delirium (ED).

2. The variable of interest is blood cocaine concentration.

3. The variables are clearly numerical. Also they are continuous as a scale (mg/L) is used.

4. The sample mean is (0+0+0+.1+.1+.2+.2+.3+.3+.3+.4+.5+1.0+1.5+2.7+4.3+8.9+9.2+11.7+21.0)/20

= 3.135

0 0 0 .1 .1 .2 .2 .3 .3 .3 .4 .5 1.0 1.5 2.7 4.3 8.9 9.2 11.7 21.0

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