A dactor wants to estmate the mean HDL cholesterol of all 20 to 29-year-old females. How…

A dactor wants to estmate the mean HDL cholesterol of all 20 to 29-year-old females. How many subjects are needed to estimate the mean HDL cholesterol within 3 points wh 99% confdence assumings17.9 based on earler studies? suppose te doctor would be content with 95% condence How does the decreasen consdence anectthe sampie see No en A99% contdence level requres□subjectsRund up to the nearest subiect)