A street noodle vendor (one server) in Singapore can service an average of 20 customers per hour. Given an average arrival rate of 12 customers per hour, calculate the mean waiting time in the system (being served and in the queue). Group of answer choices 4.5 minutes 2.5 minutes 1.5 minutes 3.5 minutes 7.5 minutes

The total value of your portfolio is $10,000: $3,000 of it is invested in stock a and the remainder invested in stock b. stock a has a beta of 0.8; stock b has a beta of 1.2. the risk premium on the market portfolio is 8%; the risk-free rate is 2%. additional information on stocks a and b is provided below. return in each state state probability of state stock a stock b excellent 15% 15% 5% normal 50% 9% 7% poor 35% -15% 10% what are each stock’s expected return and the standard deviation? what are the expected return and the standard deviation of your portfolio? what is the beta of your portfolio? using capm, what is the expected return on the portfolio? given your answer above, would you buy, sell, or hold the portfolio?

bradford, inc., expects to sell 9,000 ceramic vases for $21 each. direct materials costs are $3, direct manufacturing labor is $12, and manufacturing overhead is $3 per vase. the following inventory levels apply to 2019: beginning inventory ending inventory direct materials 3,000 units 3,000 units work-in-process inventory 0 units 0 units finished goods inventory 300 units 500 units what are the 2019 budgeted production costs for direct materials, direct manufacturing labor, and manufacturing overhead, respectively?

Now ray has had the tires for two months and he notices that the tread has started to pull away from the tire. he has already contacted the place who sold the tires and calmly and accurately explained the problem. they didn’t him because they no longer carry that tire. so he talked with the manager and he still did not get the tire replaced. his consumer rights are being violated. pretend you are ray and write a letter to the company’s headquarters. here are some points to keep in mind when writing the letter: include your name, address, and account number, if appropriate. describe your purchase (name of product, serial numbers, date and location of purchase). state the problem and give the history of how you tried to resolve the problem. ask for a specific action. include how you can be reached.