An Experiment Was Conducted to Determine the Effectiveness of a Method

question 43

Multiple Choice

An experiment was conducted to determine the effectiveness of a method designed to remove oil wastes found in soil.Three contaminated soil samples were treated.After 95 days,the percentage of contamination removed from each soil sample was measured,with a mean of 49.3 percent and a standard deviation of 1.5 percent.If we wished to narrow the boundary around μ for a 98 percent confidence interval to within 0.5 percent,how many soil samples should be in our experiment.

• A) 437
• B) 33
• C) 9
• D) 6
• E) 3

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Definitions:

Bacterial Plasmid

Small, circular, double-stranded DNA molecules found in bacteria, which can replicate independently and often carry genes beneficial to the survival of the bacteria, such as antibiotic resistance genes.

Human DNA

The complete set of nucleic acid sequences for humans, encoding the genetic instructions used in the development and functioning of human organisms.

Gene Pharming

A technology that uses genetically modified animals or plants to produce pharmaceuticals.

Therapeutic Proteins

Biologically derived proteins used in the treatment and management of diseases.