James Weepu, Human Resources Manager with Auckland First Bank (AFB), is reviewing the employee training programs
of AFB branches. He plans to use a 95% confidence interval estimate of mean training time of tellers and is willing to accept an error of 1 hour; previous studies indicated a standard deviation of 2 hours. The sample size should be at least ........
Here we are given following data confidence level = 95% margin of error E = 1 standard deviation = 2... View the full answer