Assume that following an injury you received from playing your favorite sport, you obtain and read information on new pain medications. In that information you read of a study that was conducted to test the side effects of two new pain medications. Use the following table to answer the questions and decide which, if any, of the two new pain medications you will use.

1. How many subjects were in the study?
2. How long was the study?
3. What were the variables under study?
4. What type of variables are they, and what level of measurement are they on?
5. Are the numbers in the table exact figures?
6. What is the probability that a randomly selected person was receiving a placebo?
7. What is the probability that a person was receiving a placebo or drug A? Are these mutually exclusive events? What is the complement to this event?
8. What is the probability that a randomly selected person was receiving a placebo or experienced a neurological headache?
9. What is the probability that a randomly selected person was not receiving a placebo or experienced a sinus headache?

Transcribed Image Text:

Number of side effects in 12-week clinical trial Placebo Drug A Drug B Side effect n = 192 n = 186 n = 188 Upper respiratory congestion 10 32 19 Sinus headache 11 25 32 Stomachache Neurological headache Cough Lower respiratory congestion 222 46 34 55 22 18 5 221 12 72 31