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In: Statistics and Probability

You wish to compare four treatments for effectiveness in preventing flu: (1) a flu vaccine, (2)...

You wish to compare four treatments for effectiveness in preventing flu: (1) a flu vaccine, (2) 1 gram of vitamin C per day, (3) an Echinacea pill, (4) a turmeric curcumin complex pill, and (5) a placebo taken daily. (A placebo is a dummy pill which contains no active ingredient and should have no physical effect.)

In clinical experiments involving people, it is strongly recommended that a placebo be included among the treatments. Explain why.

What is an appropriate response variable?

Suppose that 1000 volunteer subjects are available for the study. Draw a diagram showing a

design of your experiment. Clearly indicate where randomization, replication and control are applied in the experiment.

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Expert Solution

orchestra answered 2 years ago
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