On a police sergeant's examination, the historical mean score was 80 with a standard deviation of 20. Four officers who were alleged to be cronies of the police chief scored 195, 171, 191, and 189, respectively, on the test. This led to allegations of irregularity in the exam. (a) Convert these four officers’ scores to standardized z-values. (Round your answers to 2 decimal places.) z-score for 195 z-score for 171 z-score for 191 z-score for 189 (b-1) Do you think there was sufficient reason to question these four exam scores? multiple choice 1 Yes No

You are the manager of a firm that produces output in two plants. the demand for your firm's product is p = 20 − q, where q = q1 + q2. the marginal costs associated with producing in the two plants are mc1 = 2 and mc2 = 2q2. how much output should be produced in plant 1 in order to maximize profits?

Walmart’s scm system walmart is famous for its low prices, and you may have experienced its low prices first-hand. at least, you have probably seen its motto, “always low prices— always.” one of the biggest reasons walmart is able to sell at prices lower than almost everyone else is that it has a superefficient supply chain. its it-enabled supply chain management system is the envy of the industry because it drives excess time and unnecessary costs out of the supply chain. so, because walmart can buy low, it sells low. as a matter of fact, if your company wants to sell items to walmart for it to sell in its stores, you will have to do business with it electronically. if your company can’t do that, walmart won’t buy anything from you. log on to walmart’s web site (), search for supplier information, and find out what walmart’s requirements are for its suppliers to do business with it electronically. prepare a brief summary of its requirements for presentation in clas

Frugala is when sylvestor puts $2,000 into 10-year state bonds and $3,000 into 5-year aaa-rated bonds in steady hand hardware, inc. he buys the four state bonds at a 5 percent interest rate and the three steady hand bonds at a 6.5 percent rate. sylvestor also buys $1,500 worth of blue chip stocks, and $800 worth of stock in a promising new sportswear company that reinvests its earnings in new growth. 1. (a) what is the maturity for each of the bond groups sylvestor buys? (b) the coupon rate? (c) the par value?