What value of variable a would be the cutoff point (criterion value) for identifying the lowest 4% of values in variable a (use the qnorm

Afinancing project has an initial cash inflow of $42,000 and cash flows of −$15,600, −$22,200, and −$18,000 for years 1 to 3, respectively. the required rate of return is 13 percent. what is the internal rate of return? should the project be accepted?