I believe the correct answer is D. Don’t hate me if I’m wrong
Answer: Percentage change OCF = 27.96%.
Explanation:
Given that,
Output level = 59,000 units
Degree of operating leverage = 3.3
Output rises to 64,000 units,
Degree of Leverage = 
Percentage change OCF = Degree of Leverage × Percentage change in Quantity
= 
= 27.96%
Calculation of equal amount to deposit each year to get the future amount:
It is given that a manufacturer of triaxial accelerometers wants to have $2,800,000 available 10 years from now. So we can say that Future value is $2,800,000. We are also given that the deposit rate is 6% per year.
In order to find out the equal amount to deposit each year we need to calculate the annuity using the future value of annuity formula as follows;
Annuity = Future value of annuity / FV of $1 annuity
FV of $1 annuity (at 6% rate for 10 years) is 13.18079
Hence,
Annuity =2,800,000 / 13.18079 = 212,430.36
Hence , equal amount to deposit each year is $212,430.36
Answer:
$211,689. 53
Explanation:
Calculation to determine the remaining balance (or value) of the mortgage after the payment of the fifth annual installment
Step 1 is to compute PMT using Financial calculator
I = 6%
N = 20
PV = 250,000
FV = 0
PMT=?
Hence,
PMT = 21,796.14.
Now let determine the PV using Financial calculator
I = 6%
N = 15
PMT = 21,796.14
PV=?
Hence,
PV = $211,689. 53
Therefore the remaining balance (or value) of the mortgage after the payment of the fifth annual installment is $211,689. 53
C. A statistical analysis is said to have internal validity if the statistical inferences about causal effects are valid for the population being studied. The analysis is said to have external validity if conclusions can be generalized to other populations and settings.
So internal validity means the results are accurate and you can use them to make sense of the group you are studying. External validity still means the results are accurate, but that you can use them to make assumptions about the population as a whole.
So if you look at a field of cows where half are white and half are brown, you have internal validity that 50% of your sample is white and 50% is brown. This result would not have external validity because in the whole world, cows can be different colors or combinations of colors.
