Question #3: Research design:

Looking at this 1930 ad, one can see how that tobbaco companies at the time resorted to actual scientific experiments to prove the hypotheis that certain brands of cigarettes offered really good protection gaianst throat irritation.

1. Imagine that you were the R&D researcher at the Tobacco company in charge of conducting such experiments that gave the comcusion above, come up with asuitable samle size and an experimental set up that will allow you to test this hypotheis. Describe them briefly:

2. The Independent variable and its unit:

3. The dependent variable, and its unit:

4. The test group:

5. The control group:

6. The controlled variables:

7. In terms of the scientific check list, how compliant is your experiment?

8. Are there any precautionary measures you should have taken? Yes or no and explain.