The quality control manger at a light bulb factory need to estimate the mean life of a large shipment of light bulbs. The SD is 100 100 hrs.A random sample of 64 light bulbs indicated a sample mean life of 350 hrs. a. Construct a 95% confidence interval e
The quality control manger at a light bulb factory need to estimate the mean life of a large shipment of light bulbs. The SD is 100 100 hrs.A random sample of 64 light bulbs indicated a sample mean life of 350 hrs. a.Construct a 95% confidence interval estimate for the population mean life of light […]