Use the given degree of confidence and sample data to construct a confidence interval for the population means. A random sample of 15 light bulbs had a mean life of 548 hours and a sample standard deviation of 29 hours. Find a 90 percent confidence interval for the mean life, μ, of all light bulbs of this type.
The answer to the question is available in the PDF file https://assignmentexpert.com/https://assignmentexpert.com/homework-answers/mathematics-answer-19987.pdf
Comments
Leave a comment