PROBLEM 6E

A manufacturer sells a light bulb that has a mean life of 1450 hours with a standard deviation of 33.7 hours. A new manufacturing process is being tested, and there is interest in knowing the mean life μ of the new bulbs. How large a sample is required so that is a 95% confidence interval for μ? You may assume that the change in the standard deviation is minimal.

Leslie Ogu ORSC 1109 04/27/2016 Organization Life Cycles Life Cycles 1. Emergence a. Contributions 2. MidLife 3. D & D a. APL b. Internal Worth Stages of Decline 1. Environment Change a. Erosion b. Collapse c. Contraction 2. Recognition a. Failure to anticipate b. Changes...