9. Diverticulitis is a common intestinal ailment. To test a new medication, a
hospital takes 50 volunteers who have a moderate case of the disease. The
volunteers are randomly assigned to two treatment groups, one receiving the
old medication and one receiving the new medication. The pills are distributed
in unmarked pill form so that the patients and medical professionals do not
know which medication the patient is taking. Which of the following statements
is/are true?
1. If the results show that the new medication is significantly more effective than the old
medication, we can conclude that the new medication will be more effective for all people
that have a moderate case of the disease.
Il The groun receiving the old medication serves as a control groun

A clinical trial in which neither the participants nor the researcher knows which treatment or intervention they will receive until the experiment is completed, is called double blinded experiment (in context of clinical trial).

The question is missing some part of second and third statement and options which are as:

II. The group receiving the old medication serves as a control group.

III. This is an example of a double-blind experiment.

Options:

(A) II

(B) I and II

(C) I and III

(D) II and III

(E) I, II, and III

Checking all the statements one by one:

I : If the results show that the new medication is significantly more effective than the old medication, we can conclude that the new medication will be more effective for all people that have a moderate case of the disease.

Its False because we cannot conclude that it would be true for "all of the people" but we can conclude that it would be true for most of the people (we can also predict the expression.

II: The group receiving the old medication serves as a control group.

This is true as the results of the new medication will be compared with the results of the old medication, which therefore serves as a standard for comparison.

III. This is an example of a double-blind experiment.

This is true because, as stated in the problem : "The pills are distributed in unmarked pill form so that the patients and medical professionals do not know which medication the patient is taking.", neither the experimenters nor the participants know which type of treatment(here medication) they're going to recieve.

Thus, the true statements about the experiment that is considered is given by: Option (D): II, and III

Learn more about double blind experiment here:

https://brainly.com/question/5303449