A Quality Analyst wants to construct a sample mean chart for controlling a packaging process. He knows from past experience that whenever this process is under control, package weight is normally distributed with a mean of twenty ounces and a standard deviation of two ounces. Each day last week, he randomly selected four packages and weighed each: Day Weight (ounces)
Monday 23 22 23 24
Tuesday 23 21 19 21
Wednesday 20 19 20 21
Thursday 18 19 20 19
Friday 18 20 22 20

What are the upper and lower control limits for these data?

a. UCL = 22.644 LCL = 18.556
b. UCL = 22.700 LCL = 18.500
c. UCL = 22.755 LCL = 18.642
d. UCL = 21.814 LCL = 19.300

Accublade castings inc. casts blades for turbine engines. within the casting department, alloy is first melted in a crucible, then poured into molds to produce the castings. on may 1, there were 230 pounds of alloy in process, which were 60% complete as to conversion. the work in process balance for these 230 pounds was $32,844, determined as follows: exercises during may, the casting department was charged $350,000 for 2,500 pounds of alloy and $19,840 for direct labor. factory overhead is applied to the department at a rate of 150% of direct labor. the department transferred out 2,530 pounds of finished castings to the machining department. the may 31 inventory in process was 44% complete as to conversion. prepare the following may journal entries for the casting department: the materials charged to production the conversion costs charged to production the completed production transferred to the machining department determine the work in process"casting department may 31 balance.

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As the inventor of hypertension medication, onesure pharmaceuticals (osp) inc. was able to reap the benefits of economies of scale due to a large consumer demand for the drug. even when competitors later developed similar drugs after the expiry of osp's patents, regular users did not want to switch because they were concerned about possible side effects. which of the following benefits does this scenario best illustrate? a. first-mover advantages b. social benefits c. network externalities d. fringe benefits