An analyst selects a model as a champion because it shows better model fit than a competing model with more predictors. which statistic justifies this rationale?

The returns on the common stock of maynard cosmetic specialties are quite cyclical. in a boom economy, the stock is expected to return 22 percent in comparison to 9 percent in a normal economy and a negative 14 percent in a recessionary period. the probability of a recession is 35 percent while the probability of a boom is 10 percent. what is the standard deviation of the returns on this stock?

University car wash built a deluxe car wash across the street from campus. the new machines cost $219,000 including installation. the company estimates that the equipment will have a residual value of $19,500. university car wash also estimates it will use the machine for six years or about 12,500 total hours. actual use per year was as follows: year hours used 1 3,100 2 1,100 3 1,200 4 2,800 5 2,600 6 1,200 prepare a depreciation schedule for six years using the following methods: 1. straight-line. 2. double-declining-balance. 3. activity-based.

An electronics store is running a promotion where for every video game purchased, the customer receives a coupon upon checkout to purchase a second game at a 50% discount. the coupons expire in one year. the store normally recognized a gross profit margin of 40% of the selling price on video games. how would the store account for a purchase using the discount coupon?