A true/false test has 80 questions. a passing grade is 63% or more correct answers. a. what is the probability that a person will guess correctly on one true/false question? b. what is the probability that a person will guess incorrectly on one question? c. find the approximate probability that a person who is just guessing will pass the test. d. if a similar test were given with multiple-choice questions with four choices for each question, would the approximate probability of passing the test by guessing be higher or lower than the approximate probability of passing the true/false test? why?

Explanation:

South Tel Communications is considering the purchase of a new software management system. The system is called B-image, and it is expected to drastically reduce the amount of time that company technicians spend installing new software. South Tel's technicians currently spend 6,000 hours per year on installation which cost South Tel $25 per hour. The owners of the B-image system claim that their software can reduce time on task by at least 25%. The system requires an initial investment of $55,000 and an additional investment of$10,000 for technician training on the new system. Annual upgrades will cost the firm $15,000 per year. Because the investment is comprised of software, it can be fully expensed in the year of the expenditure (no depreciation). South Tel faces a 30% tax rate and uses a 9% cost of capital to evaluate projects of this type.

A. Assuming that South Tel has sufficient taxable income from other projects so that it can immediately expense the cost of the software, what are the free cash flows for the project for years zero through five?

Total (65,000)

Cash flow year 1 - 5

Saving on installations per year 450,000

Less: Annual upgrades ( 15,000)

Total 435,000

Less: Tax (30%) (130,500);

Total project free cash flow 304,500.answer