A moving average will give a quick response if a large number of observations are averaged

Bank of the Atlantic has liabilities of $4 million with an average maturity of two years paying interest rates of 4.0 percent annually. It has assets of $5 million with an average maturity of 5 years earning interest rates of 6.0 percent annually. What is the bank's net interest income in dollars in year 3, after it refinances all of its liabilities at a rate of 6.0 percent?

A. -$60,000. B. -$140,000. C. +$140,000. D. +$60,000. E. +$800,000.

Mark's Ceramics spent $4000 on a new kiln last year in the belief that it would cut annual energy usage 25% over the old kiln. This kiln is an oven that turns "greenware" into finished pottery

Mark is concerned that the new kiln requires extra labor hours for its operation. Mark wants to check the energy savings of the new oven, and also to look over other measures of their productivity to see if the change really was beneficial. Mark has the following data to work with: Last Year This Year Production (finished units) 4000 4000 Greenware (pounds) 5000 5000 Labor (hrs) 350 375 Capital ($) 15000 19000 Energy (kWh) 3000 2600 Were the modifications beneficial?