The correct answer is Only (A) and (C) are true
Explanation:
In a study or research, the control group is the one that does not receive a treatment. This means, in this case, the control group includes those who only drink the green tea without the herbs because they serve as a standard to measure the effects of the herbs. This makes statement A (The "only green tea" group serves as the control group) true; also, the group receiving the herbs is the experimental group.
On the other hand, a double-blind study is one in which the researchers and the participants ignore who is receiving the treatment, which guarantees there is objectivity. This occurs in the study presented because neither the researcher nor the subjects known who received the herbal mix. Thus, statement C (This study is double-blind) is true.
Finally, a study is classified as observational if there is not intervention but the researchers just observe participants to study a phenomenon. This does not occur in the study presented because there is an intervention through the herbal treatment, and therefore the study is not observational.
Answer:
SUPPLY
LAW OF SUPPLY
Explanation:
Supply is the buyer's ability & willingness to sell at a given price, period of time.
Law of Supply states : Positive relationship between price & quantity demanded, other factors remaining constant. It implies higher price increases supply, lower price decreases supply (other factors same)
Answer:
A. doesn't lose any sales when it raises its price
Explanation:
- As monopoly is ruled by one set of prices and they are price makers thus even f the prices rise the price will be set above the marginal cost to maximize the profits. Thus a monopoly does not lose its market share as it acts as a single dominating factor in the supply and trade of the goods and services. And it stipulates the financial dealing through a single seller.
<span>The most beneficial advantages for producers is open market economy because it is lead to more innovation and research & development through the absence of red tape. Producers don’t have to wait for the government to tell them what to make. They study demand, research trends and meet the customer’s needs through innovation. So, also encourages competition amongst firms to improve their product and service.</span>
Producer & Consumer should be the correct answer
