For a given level of ?, increasing the sample size will decrease ?, thereby increasing the power of the test

The ABC Corporation is considering introducing a new product, which will require buying new equipment for a monthly payment of $5,000. Each unit produced can be sold for $20.00. ABC incurs a variable cost of $10.00 per unit

How many units must ABC sell each month to break even? A) 500 units B) 5000 units C) 250 units D) 2500 units E) 25 units

In the 28% marginal tax bracket, a $1,000 tax-deductible contribution to a pension account will reduce your taxes in the year of the contribution by

A) $0. B) $280. C) $720. D) $1,000.