In addition to knowing how many customers will enter your restaurant you will also like to start developing a 99% Ci for daily revenue. Your sample size is 50 you sample mean is $4500 and you sample standard deviation is $150. You do not have enough information to find a population standard deviation
What is your margin of error
What is the CI based on your margin of error
Suppose you wanted to develop a 95% Ci repeat parts a and b for a 95% Ci.