Question 5.6

5.6 Randomized comparative experiment? For which of the following studies would it be possible to conduct a randomized comparative experiment?

  1. (a) A study to determine if the month you were born in affects how long you will live.

  2. (b) A study to determine if taking Tylenol dulls your emotions.

  3. (c) A study to determine if a person’s sex affects his or her salary.

  4. (d) A study to determine if the wealth of parents affects the wealth of their children.