Twelve different video games showing substance use were observed and the duration times of game play in seconds are listed below. The design of the study justifies the assumption that the sample can be treated as a simple random sample. Use the data to construct a 99% confidence interval estimate of mean the mean duration of game play.
4048 3879 3853 4035 4322 4818 4666 4030 4997 4831 4341 4315
What is the confidence interval estimate of the population mean?