Describe whether the following study would most likely be “observational” or “experimental”, and why it would be so. Describe whether the following study would most likely be “observational” or “experimental”, and why it would be so.

Describe whether the following study would most likely be “observational” or “experimental”, and why it would be so.
Describe whether the following study would most likely be “observational” or “experimental”, and why it would be so.

* Researchers test two different blood pressure medicines to determine effectiveness.

&Assume that you have selected 10 students enrolled at your college and have collected data for these three variables:

X: number of courses enrolled

Y: total cost of text books and supplies for courses

Z: method of payment used for textbooks and supplies

a.What is the population?

b.What is the sample?

c.Classify the three variables as nominal, ordinal, discrete or continuous.

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