Please show me the step by step process for the following. I'm not allowed to use a calculator on tests. So I need to understand how to do this...

Please show me the step by step process for the following. I'm not allowed to use a calculator on tests. So I need to understand how to do this without one. I need to show how I got the answer when I test on this stuff. I don't have mathematical software.A restaurant owner wishes to find the 99% confidence interval fo the true mean cost of a dry martini. How large should the sample be if she wishes to be accurate within $0.10? A previous study showed that the standard deviation of the price was $0.12.

Solution To Assignment CH304010_496667_STATA restaurant owner wishes to find the 99% confidence interval fo the true mean cost of a dry martini. How large should the sample be if she wishes to be...