Signs, gestures, and language, as well as values and norms, are all part of – culture.

The most powerful of all norms is taboo.

Explanation:

A taboo is known as an implicit constraint on or against an utterance which is based on cultural sense that it is considered to be too sacred for some people or excessively repulsive. Such constraint are usually present in mostly in all societies. Therefore, it is considered to be one of the most powerful norms among sign, languages and gestures etc.

The available options are:

a. The percentage of treatment and control group participants with significant pain is the same in the population

b. The treatment group mean equals 1 in the population, and the control group mean is greater than 1 in the population

c. Both population means equal 1

d. The difference between the treatment and control group means is zero in the population

e. The difference between the sample means of the treatment and control group is zero

D. The difference between the treatment and control group means is zero in the population

Explanation:

Considering the fact a Null Hypothesis is a form of conventional statistical theory that proposes that there is zero or no statistical relationship and significance in a group of assigned single observed variables, between two groups of experimental data and assessed events.

In this case, the NULL HYPOTHESIS is the zero difference between the treatment or online group and the control group means in the population