answer: 
Independent Variable: Group that completed the stress management training vs. Group that had no training)
Dependent Variable: Number of sick days
Explanation:
The dependent variables also called Predicated variable is a type of variable that depends on the independent variable which happens as a result of the circumstances surrounding the  independent during an experimental investigations. it also predicts the  outcome resulting from altering the controlled variable. for example in the question, the dependent variable is  Number of sick days
The independent variable is the variable the which can be  changed or controlled during an experimental investigation which dependent variable relies on directly. for example from the question, the independent variable is the Group- (Group that completed the stress management training vs. Group that had no training)
 
        
             
        
        
        
Answer (A):
Need more data to select the better adviser
<u>Explanation: </u>
Adviser A averaged 19% return on the investment which is more than that of Adviser B who averaged 16% return on investment. However, adviser A has a beta of 1.5 which is also greater than that of Adviser B who has a beta of 1. This means that adviser A made a more riskier investment and hence a higher average return on investment. We need more data to tell which adviser performed better in relation to each other.
Answer (B):
Investment Adviser B
<u>Explanation:</u>
 = T-bill rate = 6%
 = T-bill rate = 6%
 = Market return = 14%
 = Market return = 14%
 = Market risk premium = 14% - 6% = 8%
 = Market risk premium = 14% - 6% = 8%
 = Average Return by Adviser A =19%
 = Average Return by Adviser A =19%
 = Beta of Adviser A = 1.5
 = Beta of Adviser A = 1.5
 = Average Return by Adviser B =16%
 = Average Return by Adviser B =16%
 = Beta of Adviser B = 1
 = Beta of Adviser B = 1
CAPM Equation is 
<u>For Adviser A</u>
 = 6 + 1.5 (14 - 6) = 18%
 = 6 + 1.5 (14 - 6) = 18%
The expected average return for the investment is 18% which means that Adviser A over performed the market by 1 %
<u>For Adviser B</u>
 = 6 + 1 (14 - 6) = 14%
 = 6 + 1 (14 - 6) = 14%
The expected average return for the investment is 14% which means that the Adviser B over performed the market by 2 %
Clearly, Adviser B performed better than Adviser A.
Answer (C):
Adviser B
<u>Explanation:</u>
<u />
In this part, the  and
 and 
All else remains the same
We make similar calculation as in part B
 
        
             
        
        
        
Answer:
The division's Return on Investment (ROI) is 180%
Explanation:
The computation of the return on investment is shown below:
= (Operating income) ÷ (total assets) × 100
= ($1,800,000) ÷ ($1,000,000) × 100
= 180%
The return on investment shows a relationship between the operating income and the total assets / investment.
The other information which is given in the question is not consider in the computation part. Hence, ignored it 
 
        
             
        
        
        
Nitrogen gas travels from the air to the soil and right into the nodules.