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: A, Debit Cash of $180 and Credit sales of $180.
Explanation:
The above transaction is due to the fact that MacKenzie company is the company that made the sales.
$10,000 for 180days promissory note @ 9%. Since the 9% is an annual rate and the loan is for 180day we calculate thus:
10,000*9/2 = 10,000 * 4.5%=$ 10,450
Answer:
The consumer is the one who pays to consume the goods and services produced.
Explanation:
As such consumers play a vital role in the economic system of a nation. In absence of effective demand the producers would lack a key to motivation
<span>The basic economic problem will affect Bill Gates who is one of the the world's wealthiest people because scarcity of resources is more so related to goods and services, and not how much money one may have. While he may be able to buy all the goods and services he wants as many as he wants for a unlimited amount time, he could only have access to those things if they are available.</span>
Answer:
The quantity variance = -900 unfavorable
Explanation:
Direct materials flexibel - budget variance:
standard
0.7 pounds $30 per pound
3,000 x 0.7 = 2,100 standard pounds
actual
2,400 pound $29 per pound
quantity variance:
30(2,100 - 2,400) = -900