Step 1 :We are given that the standard deviation of the population of monthly time spent on the internet is 222 minutes, the error margin is 11 minutes, and the Z-score for a 95% confidence level is 1.96.
Step 2 :We can use the formula \(n = (Z*σ/E)^2\) to calculate the sample size, where \(Z\) is the Z-score, \(σ\) is the standard deviation, and \(E\) is the error margin.
Step 3 :Substituting the given values into the formula, we get \(n = (1.96*222/11)^2\).
Step 4 :Calculating the above expression, we get \(n = 1565\).
Step 5 :Since the sample size cannot be a fraction, we round up to the nearest whole number, which gives us 1565.
Step 6 :So, we need to survey at least 1565 computer users in order to be 95% confident that our sample mean is in error by no more than 11 minutes.
Step 7 :Final Answer: The minimum sample size required is \(\boxed{1565}\) computer users.