please answer all the questions quickly

A manager wishes to build a control chart for a process. A total of five (05) samples are collected with four (04) observations within each sample. The sample means (X-bar) are; 14.09, 13.94, 16.86, 18.77, and 16.64 respectively. Also, the corresponding ranges are; 11.70, 7.73, 6.89, 7.56, and 3.49 respectively. The lower and upper control limits of the R- chart are respectively Select one: a. None is correct b. O, 13,32 c. 1, 10.5 d. 0,14.22 e. O, 17.04 A local manufacturer of Toys produces several toys. Among the most popular is Elsa Doll. Suppose that there are currently 100 Elsa Doll in inventory and that there are customer orders that have been committed and must be filled. Suppose that a production lot size of 150 Elsa Dolls. The weekly forecasts for the eight weeks are 176, 172, 50, 130, 40, 120, 132 and 135 respectively. The customer orders for weeks 1, 2, 3 through 8 are the 88, 86, 25, 65,20,51,0,0 respectively. Using the standard principles of Master Production Schedule (MPS) along with Available-To-Promise (ATP) for the Elsa Dolls, what is the Available to promise (ATP) level in week 6 Select one: a. 162 b. 150 C. 39 d. 79 e. None is correct Demand for a product is forecasted for the six periods is 263, 256, 301, 312, 304, and 294 respectively. If a CHASE DEMAND strategy is adopted, and the regular production cost is RO 12 per unit with a maximum regular production of 280 units per period. While the overtime and subcontract costs are RO 20 and RO 25 per unit respectively. There is no limit on subcontracting; however, maximum overtime production capacity is 10. Average inventory holding cost is RO 5 per unit per period. What will be the total cost of overtime production? Select one: a. 1275 b. c. 800 d. 19668 e. None is correct Level capacity strategy is to maintain a variable rate of regular time output while meeting variations in demand by a combination of options, Select one: a. False b. True