You are working as a seized drug analyst in a forensic laboratory. You receive an exhibit to analyze that consists of a large ziplock bag containing brown powder. You homogenize it, select 9 samples at random, and determine the concentration of heroin in each. You calculate a mean and standard deviation value as well. The resulting values are best considered as

Question

Quizplus · Accepted Answer

The analysis of the 9 samples represents a sample of the larger population of the brown powder in the exhibit. Therefore, the resulting mean and standard deviation values are the sample mean and sample standard deviation, respectively. Choice B, C, and D are not appropriate because there is no information given about the entire population of the brown powder, meaning we can not estimate population parameters.

You Are Working as a Seized Drug Analyst in a Forensic