Answer:
The researcher is most likely studying C. absolute threshold.
Explanation:
Threshold refers a specific intensity which needs to be exceeded in order to <em>obtain a certain reaction</em>. For example, pain threshold.
The absolute threshold refers to the smallest change in a <em>stimulus' intensity</em> in order to be <em>identified by the senses</em>, such as hearing, vision, etc.
In this case, a <em>change in tones requires a low intensity</em>, meaning an almost subtle change can be easily identified by the human sense. It is most likely the researcher is studying your absolute threshold.
The subjects who receive the treatment or independent variable in an experimental study are called the Comparison group.
<h3>
What is Comparison group?</h3>
- In an experiment assessing the effects of therapy, a comparison group is a collection of units (such as individuals or classrooms) that either get no treatment or a different type of treatment.
- In order to support a counterfactual causal inference, a comparison group is used as evidence.
- The experimental group and the control group are contrasted in an experiment.
- The experimental group's adjusted independent variable is the only difference between the two groups. The independent variable is "controlled" or kept constant in the control group.
Learn more about the Comparison group with the help of the given link:
brainly.com/question/9393893
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The correct answer is B.
The opportunity cost reflects the value of what is rejected in order to perform the chosen alternative. In this case, the company decides to increase the amount of tablets produced, but given a fixed endownment of inputs, if they want to increase the tablet production they would need to decrease the supply of other product. Actually, the firm decreases the number of laptops manufactured.
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