Hi, I need help with this questions please as I am very confused on where to even start. – A hospital administrator wants to measure average cost per stay in his institution. He is willing to be wthin $200 of the true value with a probability of 95%. An initial investigation of a random sample of tem records determined that the standard deviationof cost was $3987. How large a sample will need to be taken to meet the administrator’s needs? It needs to be answered in Excel spreadsheet.