Microbiologists visiting a hospital in Greenville, NC want to see how effective hand washing with a...

Microbiologists visiting a hospital in Greenville, NC want to see how effective hand washing with a newly design antibacterial soap is at removing microbes from ER nurses hands. At the beginning of 10 different ER nurses shifts, they have their hands swabbed. Then after each patient interaction their hands are swabbed again after washing with the new soap. The microbes are grown on agar plates and counts are recorded from each individual swab.

1. What is the independent variable? _______________________________________________

2. What is the dependent variable? _________________________________________________

3. What is the control? ___________________________________________________________

4. What are the constants? ________________________________________________________

5. What would your hypothesis be for this particular study?

Solutions

Expert Solution

Variable: It is a value or measurement of any character.

Independent variable: Independent variables are those variables in a functional relation which is not affected or dependent upon other variables.

Dependent variable: The variable in a functional relation whose value is depends upon or affected by independent variables.

Control: This is the one value, in which the value would not be tested for dependent variable.

When we do any experiment, we fix a particular data which is used by researcher as a control. Then our experimentally observed data was compared with the control to check the difference.

It is the basal data obtained directly or experimented by which we compare our experimental data.

Constants: When we do an experiment, the constant is a part that does not change during experimental work.

A data or value which is constant during experiment is called as constant.

Hypothesis: We are going to analyze the impact or effectively of newly designed antimicrobial soap on the nurses who use to deal with patients. For this experiment samples was taken from the hands of nurses as untreated or soap treated hands to compare or record the data.

gladiator answered 1 year ago

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