Question: There are 300 welders employed at the Maine Shipyards Corporation. A sample of 30 welders revealed that 18 graduated from a registered welding course. Construct the 95 percent confidence interval for the proportion of all welders who graduated from a registered welding course.© BrainMass Inc. brainmass.com June 3, 2020, 7:43 pm ad1c9bdddf
Sample Proportion = 18/30 = 0.6
Since sample proportion = true proportion, true ...
This solution is comprised of a concise, step by step response which demonstrates how to construct a 95% confidence interval. All calculations are provided.