Consider the following information. First Quarter Second Quarter Unit Selling Price $15.00 $17.00 Total Units Sold 12,000 11,500 Labor Hours 10,000 9,500 Labor Cost/Hour $9.00 $10.00 Material Usage (lbs.) 5,000 7,500 Material Cost/lb. $12.00 $10.50 Other Costs $25,000 $30,000 a. Which quarter, first or second, had the higher labor productivity (output quantity per labor dollar input)? b. Which quarter, first or second, had the higher material productivity (output quantity per material dollar input)? Which quarter, first or second, had the higher total productivity (dollar output per total dollar input)