Answer:
Bookstore A
The lot size that minimizes costs = 19
The number of times per year to place an order = 6 times.
Step-by-step explanation:
a) Data and Calculations:
Expected sales units during the next year = 120 calculus textbooks
Cost of storing one calculus textbook for one year = $180 ($1.50 * 120)
Reorder cost = $274 ($10 + $2.20 * 120)
Lot size of order = square root of (2 * 120 * $274)/$180
= square root of 65,760/$180
= square root of 365
= 19 units
Number of times per year to place order = 6 (120/19)