Regional Supermarket is open 360 days per year. Daily use of cash register tape averages 19 rolls. Usage appears normally distributed with a standard deviation of 3 rolls per day. The cost of ordering tape is $.75, and carrying costs are 43 cents per roll a year. Lead time is 3 days. a. What is the EOQ?b. What ROP will provide a lead time service level of 96 percent?c. What is the expected number of units short per cycle with 96 percent? Per year?d. What is the annual service level?

Speedy auto repairs uses a job-order costing system. the company’s direct materials consist of replacement parts installed in customer vehicles, and its direct labor consists of the mechanics’ hourly wages. speedy’s overhead costs include various items, such as the shop manager’s salary, depreciation of equipment, utilities, insurance, and magazine subscriptions and refreshments for the waiting room. the company applies all of its overhead costs to jobs based on direct labor-hours. at the beginning of the year, it made the following estimates: direct labor-hours required to support estimated output 20,000 fixed overhead cost $ 350,000 variable overhead cost per direct labor-hour $ 1.00 required: 1. compute the predetermined overhead rate. 2. during the year, mr. wilkes brought in his vehicle to replace his brakes, spark plugs, and tires. the following information was available with respect to his job: direct materials $ 590 direct labor cost $ 109 direct labor-hours used 6