Although the use of DDT was banned in the United States in 1972, a test of the body tissue of an average United States resident today would most likely reveal the presence of DDT because DDT is the breakdown product of some newer pesticides on the market DDT is the breakdown product of some newer pesticides on the market A DDT is water soluble DDT is water soluble B other countries that export produce to the United States still use DDT other countries that export produce to the United States still use DDT C many farmers in the United States are still using DDT illegally many farmers in the United States are still using DDT illegally D DDT is naturally produced by many plants

If we know that a firm has a net profit margin of 4.6 %, total asset turnover of 0.62, and a financial leverage multiplier of 1.54, what is its roe? what is the advantage to using the dupont system to calculate roe over the direct calculation of earnings available for common stockholders divided by common stock equity?

Acompany that makes shopping carts for supermarkets and other stores recently purchased some new equipment that reduces the labor content of the jobs needed to produce the shopping carts. prior to buying the new equipment, the company used 6 workers, who produced an average of 79 carts per hour. workers receive $16 per hour, and machine coast was $49 per hour. with the new equipment, it was possible to transfer one of the workers to another department, and equipment cost increased by $11 per hour while output increased by four carts per hour. a) compute the multifactor productivity (mfp) (labor plus equipment) under the prior to buying the new equipment. the mfp (carts/$) = (round to 4 decimal places). b) compute the productivity changes between the prior to and after buying the new equipment. the productivity growth = % (round to 2 decimal places)

True or false: a fitted model with more predictors will necessarily have a lower training set error than a model with fewer predictors.