Researches are interested in whether or not the average fuel economy for compact cars is the same as sedan cars. A sample of 36 compact cars and 25 sedan cars is taken. The sample of compacts returns a mean of X 38 miles per gallon and sample variance of s2-25. The sample of sedans returns a sample mean Y 36 with a sample variance of s 49. Let be the population mean of compacts and ?2 for sedans. a. Create a 95% confidence interval for . b. Now create a 95% confidence interval for ?1-112 c. Say the interval from part b. contains 0. What can you say about the difference in the average fuel economy of compact cars versus economy cars.

Sonic corp. manufactures ski and snowboarding equipment. it has estimated that this year there will be substantial growth in its sales during the winter months. it approaches the bank for credit. what is the purpose of such credit known as? a. expansion b. inventory building c. debt management d. emergency maintenance

1. all other things equal, according to the law of demand, when the price of a good falls, the demand for the good falls the demand for the good rises the quantity demanded of the good falls the quantity demanded of the good rises 2. when a market is in equilibrium, the quantity of the good that buyers are willing and able to buy exactly equals the quantity that sellers are willing and able to sell cannot be determined is less than the quantity that sellers are willing and able to sell is greater than the quantity that sellers are willing and able to sell 3. which of the following factors does not influence the demand for a good or service? consumer (buyer) income the price of related goods the number of sellers buyer expectations 4. when the number of sellers in a market increases, demand rises supply rises the price rises, all else equal the number of buyers falls

Given the following information about the closed economy of brittania, what is the level of investment spending and private savings, and what is the budget balance? assume there are no government transfers. gdp=$1180.00 million =$510.00 million =$380.00 million =$280.00 million