Answer:
a. ROI Dollar Amount $4; ROI percentage = 8%.
b.ROI Dollar Amount $15; ROI percentage = 15%.
a. We have:
Initial investment $50
Amount at year end $54
ROI Dollar Amount 
ROI Percentage 
b.
Initial investment $100
Amount at year end $115
ROI Dollar Amount 
ROI Percentage 
Answer:
a) H0: u = presence of a unit root
HA: u ≠ presence of a unit root ( i.e. stationary series )
b) t stat = -0.064
c) We will reject the Null hypothesis and the next step will be to accept the alternative hypothesis
d) It is not valid to compare the estimated t stat with the corresponding critical value because a random walk is non-stationary while the difference is stationary because it is white noise
Explanation:
<u>a) stating the null and alternative hypothesis</u>
H0: u = presence of a unit root
HA: u ≠ presence of a unit root ( i.e. stationary series )
<u>b) performing the test </u>
critical value = -2.88
T stat = coefficient / std error
= -0.02 / 0.31 = -0.064
c) From the test, the value of T stat > critical value we will reject the Null hypothesis hence the next step will be to accept the alternative hypothesis
d) It is not valid to compare the estimated t stat with the corresponding critical value because a random walk is non-stationary while the difference is stationary because it is white noise
The completion of the following Medicare mathematical calculations by putting in the correct amounts is as follows:
a. Medicare payment: $173.60
b. Patient owes Dr. Input: $226.40
c. Dr. Input’s courtesy adjustment: $50
<h3>What is the courtesy adjustment?</h3>
Courtesy adjustment is the write-off of a part of the medical bills to reduce the payment burden on the patients not fully covered by Medicare.
<h3>Data and Calculations:</h3>
Original bill = $450
Unmet deductible = $183
a. Medicare payment: $173.60 ($400 x 43.4%)
b. Patient owes Dr. Input: $226.40 ($400 x 56.6%)
c. Dr. Input’s courtesy adjustment: $50 ($450 - $400)
Learn more about Medicare Payments at brainly.com/question/1960701
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<h3>Question Completion:</h3>
a. Medicare payment:
b. Patient owes Dr. Input:
c. Dr. Input’s courtesy adjustment:
