Which of the Following Statements Regarding Coliform Bacteria Is Correct

question 28

Multiple Choice

Which of the following statements regarding coliform bacteria is correct?

• A)Coliforms from the human and bovine GI tracts differ, so identifying the specific microbe will indicate the source of contamination.
• B)Petri dishes used to enumerate coliforms are best incubated at 45-48°C.
• C)The presence of Klebsiella is a strong indicator of fecal contamination.
• D)Coliforms derive from the intestinal tract and therefore indicate fecal contamination.

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Definitions:

Random Sample

A subset of a population selected in such a manner that every individual has an equal chance of being chosen.

Regression Line

A line of best fit through a scatter plot of data points that shows the linear relationship between two variables.

Linear Regression

A statistical method used to model the relationship between a dependent variable and one or more independent variables by fitting a linear equation to observed data.

Standard Error

A measure of the statistical accuracy of an estimate, indicating the variability of an estimate when different samples are taken from the same population.