Twelve different video games showing substance use were observed and the duration times of

Question

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 sample data to construct and interpret a
99% confidence interval estimate of the standard deviation of the duration times of game play.
4049 3884 3860 4027 4315 4813 4657 4030 5004 4823 4334 4317

Answer 1

Here's one way you might do this:

s/[1 + (2.58/√2n)] to s/[1 - (2.58/√2n)]

Note: 2.58 represents 99% confidence

Find the standard deviation for your data. Use that value for s. Your sample size is 12.

I'll let you take it from here.