Answer:
c. 5
Explanation:
L Q MPL (ΔinQ/ΔinL) VMPL
4 52
5 60 8 80
6 66 6 60
7 70 4 40
8 72 2 20
Note: Labour hired per day = L, Total product = Q, Marginal Product of labor=MPL, VMPL =Price*MPL
A firm will maximize the profit by increasing the number of labor as long as VMPL is higher than or equal to the wage rate. In this case, we observe that VMPL ($80)>wage rate ($75) for L=5 but VMPL ($60)<wage rate ($75) for L=6. So, the optimal number of labor to be hired is 5.
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.
<span>How did trickle-down economics claim to increase government tax revenues? By lowering tax rates. Lower tax rates helps the people by giving them a tax break that the wouldn't otherwise get. Paying taxes becomes expensive and it helps those when taxes decrease because they are able to keep more of their income and afford more than they would be able to otherwise. </span>
Answer:
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