The Credit Risk Department of a major bank estimates the default rate on loans under $10,000 to be 4%. A A random sample of 2400 new loans that are under $10,000 is going to be selected. Let p be the proportion of defaults on the loans in the sample. Answer the following. (If necessary, oonsult a list of formulas.) A . (a) Find the mean of p. X 63 A (b) Find the standard deviation of p. [I A (c) Compute an approximation forP(p 2 0.045), which is the probability that 4.5% or more of the loans in the sample will be defaulted on. Round your answer to four decimal places. I]