Question

In order to estimate the mean amount of time computer users spend on the internet each​ month, how many computer users must be surveyed in order to be 95​% confident that your sample mean is within 12 minutes of the population​ mean? Assume that the standard deviation of the population of monthly time spent on the internet is 213 min. What is a major obstacle to getting a good estimate of the population​ mean? Use technology to find the estimated minimum required sample size. The minimum sample size required is 1211 computer users. ​(Round up to the nearest whole​ number.) What is a major obstacle to getting a good estimate of the population​ mean?

Answer 1

Yes the major os askskwkwk