ID Control Chart The defect rate for a product has historically been about 1.5%. What are the upper and lower control chart limits for a p-chart, if you wish to use a sample size of 50 and 3-sigma limits?

0.066, 0

0.057, -0.036

0.051, 0

0.075, 0

ID Crossover A firm is about to undertake the manufacture of a product, and it is weighing the process configuration options. There are two intermittent processes under consideration, as well as a repetitive focus. The smaller intermittent process has fixed costs of $4,300 per month and variable costs of $9 per unit. The larger intermittent process has fixed costs of $12,000 per month and variable costs of $2 per unit. A repetitive focus plant has fixed costs of $30,000 per month and variable costs of $0.80 per unit. At what output does the large intermittent process become cheaper than the small one?

		1000
		1200
		1100
		35000