Electrical Parts Incorporated and Florida Electronics Assemb…
Electrical Parts Incorporated and Florida Electronics Assembly are competitors that produce resistors, some of which are faulty. A random sample of 374 resistors was collected from Electrical Parts Incorporated and it was found that 12 of them were faulty. A random sample of 245 resistors was collected from Florida Electronics Assembly and it was found that 10 of them were faulty. Let be the population proportion of faulty resistors from Electrical Parts Incorporated and be the population proportion of faulty resistors from Florida Electronics Assembly. Construct a two-sided 90% confidence interval for the difference in population proportions,