An economist wants to estimate the average hourly wage of waitresses in a large metropolitan area. This will be done randomly surveying 250 waitresses and calculating the sample mean. Find the probability that the estimate will be in error by more than 5 cents. Assume that the population's standard deviation is 45 cents.
The answer is .0784 but I don't understand how to get it.
Can someone take me step by step on how to solve this problem?
Thank you so much!!