The correct answer is choice a, coaching can lead to 100-point gains if the quality of coaching is high.
Current research has been published by the College Board indicating that students using a high quality coaching program can increase their standardized test scores by over 100 points.
I do not agree with the given statement that is "Only variable costs can be differential costs.".
The difference in the costs of two alternative decisions is referred to as differential cost.
When a company is faced with several similar options, it must make a decision by selecting one and discarding the other.
Variable costs in cost accounting are costs that vary according to how much a company produces.
Variable costs are typically proportional to output.
As a result, the cost difference between two alternatives, rather than the fixed and variable nature of costs, is relevant for decision-making.
Hence, I disagree with the statement given in the question.
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Answer:
Required return is 8.75%
Explanation:
Given,
FV (Face Value) is $1,000
PV (present Value) is computed as:
PV = FV × Price
= $1,000 × 101.4%
= $1,014
Nper (Number of years) is 8 years
PMT (Monthly payment) is computed as:
PMT = FV × Coupon rate
= $1,000 × 9%
= $90
r (Required return) is computed by using the excel formula:
=Rate(nper, pmt, pv, fv, type)
= Rate (8,90,-1014,1000,0)
= 8.75%