5. If you have a chit, you will get the vegetarian dinner.

The above sentence implies something about necessary and sufficient conditions for getting the vegetarian dinner. Rewrite this sentence, using the words necessary and/or sufficient in the sentence.

6. People who watch old TV shows have a higher annual death rate than people who don’t. A website reporting on the research implies that people should stop watching old TV shows, as that will reduce their risk of death. 

6A. Without using jargon such as ‘X’ and ‘Y’, describe an alternative causal model that might plausibly explain the correlation. Explain why your model is plausible.

6B. Invent a research study designed to test whether watching old TV shows elevates the risk of death. Describe the measures and other variables of the study.

7. What statistical technique was described in class as sometimes useful to separate out the effects of multiple measured variables?

8. If you wear a bandanna for six months, you will get brachymitris, but I’m not going to wear a bandanna. That’s why I’m not going to get brachymitris. 

8A. Rewrite the above as a syllogism in standard form, labelling the premises and conclusion.

8B. Is the conclusion suppositionally inescapable? Why or why not?

8C. Is the conclusion inescapable? Why or why not?