Determine the minimum sample size required when you want to be 95% confident that the sample mean is within one unit of the population mean and a = 18.8. Assume the population is normally distributed. Click here to view an example for determining the minimum sample size Click here to watch a tutorial on how to use the Show Work window features. Show your work in the pop-up show work window. After you complete your work in the show work window, click YES below to verify that you have shown your work and go on to the next question. You must show each step of your work to receive maximum credit. Yes No