Time series data pertain to a given entity over a number of prior time periods. Cross sectional data, however, pertain to different entities for a given time period or at a given time.
Thus, cross-sectional regression analysis is the most appropriate statistical tool because it compares attributes of all stores' operating statistics at one moment in time.

The cash account is debited for the amount of the sale product. The machinery account and the related accumulated depreciation account are eliminated by a credit and a debit respectively. Because the sale price was less than the carrying amount of the asset on the date of sale, a loss on disposal should be recognized in profit or loss. The term "expenses" includes losses.

One hundred customers arrive in line per hour and only 60 are serviced per hour. Accordingly, the queue will expand to infinity during peak periods.

The contribution margin equals revenue minus variable costs. Thus, Division B's contribution margin is US $265,000 $400,000 sales + $15,000 other revenue - $65,000 direct materials - $40,000 direct labor-$15,000 variable overhead - $30,000 variable S&A expense).

The reorder point is the quantity on hand when an order is placed. If it has 20-day normal lead time, a safety stock of 1,750 units, and usage of 250 units per day, an order should be placed when 27 days of inventory are on hand, a total of 6,750 units 250 units 27 days).
Jed Ryerson Computer Furniture, Inc. RCF) manufactures a line of office computer chairs. The annual demand for the chairs is estimated to be 5,000 units. The annual cost to hold one unit in inventory is US 10 per year, and the cast to initiate a production run is US $1,000. There are no computer chairs on hand, and RCF has scheduled four equal production runs of computer chairs for the coming year, the first of which is to be run immediately. RCF has 250 business days per year, sales occur uniformly throughout the year, and production start-up is within one day. RCF is considering using the following formula for determining the economic order quantity EOQ):

If: A = cast to initiate a production run per purchase order D = annual unit demand K = cost of carrying one unit per year