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April 19, 2014

Homework Help: statistics

Posted by Patricia on Thursday, November 10, 2011 at 9:33pm.

A group of adults of 200 aged 21 to 50 were selected from those entering Fit Right Health stores in Washington state, and were randomly divided into two groups. One group was given an herb and the othe placebo. After 6 months, the the number of respiratory tract infections in each group were compared. 1< What is the population. 11. What is the sample. 111Is the study experimental or observational.1V What are the variables? V For each of those variables, what level of measurement (nominal, ordinal, interval, or ratio) was used to obtain data from these variables?

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