Questions from General Operations Management

Q: Crawford Pharmaceuticals has developed a new drug, Vaxidene. The target

Crawford Pharmaceuticals has developed a new drug, Vaxidene. The target amount for a single dose of Vaxidene is 125 mg. Patients can receive as little as 98 mg or as much as 102 mg without experiencin...

Q: BHC produces bags of cement. The stated weight for a

BHC produces bags of cement. The stated weight for a bag of cement is 200 pounds. Customers will accept an occasional bag weighing as little as 196 pounds, as long as the average weight is at least 20...

Q: Central Airlines would like to set up a control chart

Central Airlines would like to set up a control chart to monitor its on-time arrival performance. Each day over a 10-day period, Central Airlines chose 30 flights at random and tracked the number of l...

Q: The Oceanside Apparel Company manufactures men’s knit shirts. The production

The Oceanside Apparel Company manufactures men’s knit shirts. The production process requires material to be cut into large patterned squares, which are then sewn together. If the sq...

Q: (***) (Microsoft Excel problem) The Excel spreadsheet at the top

(***) (Microsoft Excel problem) The Excel spreadsheet at the top of the next page calculates the upper and lower control limits for a continuous variable. Re-create this spreadsheet in Excel. You shou...

Q: (***) (Microsoft Excel problem) The Excel spreadsheet to the right

(***) (Microsoft Excel problem) The Excel spreadsheet to the right calculates the upper and lower control limits for an attribute (in this case, the proportion of dissatisfied customers). Re-create th...

Q: (*) Tyler Apiaries sells bees and beekeeping supplies. Bees (including

(*) Tyler Apiaries sells bees and beekeeping supplies. Bees (including a queen) are shipped in special packages according to weight. The target weight of a package is 1.5 kg. Historically, Tyler’s shi...

Q: (**) Lazy B Ranch produces leather hides for use in

(**) Lazy B Ranch produces leather hides for use in the furniture and automotive upholstery industry. The company has taken 10 samples of nine observations each, measuring the square footage of each h...

Q: (**) Solar Stoves makes high-end gas stoves for domestic use.

(**) Solar Stoves makes high-end gas stoves for domestic use. The total task time needed to make a stove is 400 seconds, with the longest individual task taking 60 seconds. Solar stoves would like to...

Q: (*) Tyler Apiaries sells bees and beekeeping supplies. Bees (including

(*) Tyler Apiaries sells bees and beekeeping supplies. Bees (including a queen) are shipped in special packages according to weight. Suppose Tyler changes its processes so that the average package wei...