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# CEN4017 Risk Management In Projects

0 Download 8 Pages / 1,798 Words 06-11-2020
• Course Code: CEN4017
• University: Teesside University
• Country: United Kingdom

## Questions:

Suppose you own an expensive car and purchase auto insurance. This insurance has a \$1000 deductible, so that if you have an accident and the damage is less than \$1000, you pay for it out of your pocket. However, if the damage is greater than \$1000, you pay the first \$1000 and the insurance pays the rest. In the current year there is probability 0.025 that you will have an accident. If you have an accident, the damage amount is normally distributed with mean \$3000 and standard deviation \$750.

1.Use Excel to simulate the amount you have to pay for damages to your car. This should be a one-line simulation, so run 5000 iterations by copying it down. Then find the average amount you pay, the standard deviation of the amounts you pay, and a 95% confidence interval for the average amount you pay. (Note that many of the amounts you pay will be 0 because you have no accidents).

2.Continue, the simulation by creating a two-way data table, where the row input is the deductible amount, varied from \$500 to \$2000 in multiples of \$500. Now find the average amount you pay, the standard deviation of the amounts you pay, and a 95% confidence internal for the average amount you pay for each deductible amount.

3.Do you think it is reasonable to assume that damage amounts are normally distributed? What would you criticize about this assumption? What might you suggest instead?

4.Suppose instead that the damage amount is triangularly distributed with parameters 500,1500, and 7000. That is, the damage in an accident can be as low as \$500, and there is definite skewness to the right. (It turns out, as you an verify in @RISK, that the mean of this distribution is \$3000). Use @RISK to simulate the amount you pay for damage. Run 5000 iterations, then answer the following questions. In each case, explain how the indicated event would occur.

a.What is the probability that you pay a positive amount but less than \$750?
b.What is the probability that you pay more than \$600?
c.What is the probability that you pay exactly \$1000(the deductible)?

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