Answer: all of the above!
This is a very tricky question as you can get a lot of answers that will be partially correct.
The best answer in my oppinion is between the range of 7 minutes to around 15 minutes.
The reason why saying just one value isn'the best idea is because, if we have two groups of people, the average for the first group might be 7 minutes, and the average for the second group might be 11 minutes. So it's hard to say the average is 7 minutes. It's better presented in an interval where we can find this number :)
Explanation:
Alternative cancer treatments are better studied than conventional treatments such as chemotherapy.
Phase C. 3 of clinical testing is required by the FDA before drug approval and uses the greatest number of subjects. These clinical trials are randomized and controlled trials on large patient groups.
